AdSense placeholder
Paste your AdSense script + ad units in src/layout_bottom.php, then set $ads_enabled = true.
CT phone number directory
Carriers, NPAs, prefixes and rate centers for CT.
Top carriers in CT
| Carrier | OCN | Blocks | Open |
|---|---|---|---|
| SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | 9147 | 671 | View |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | 161 | View |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 104 | View |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CT | 7143 | 95 | View |
| SPRINT SPECTRUM L.P. | 6664 | 79 | View |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 69 | View |
| OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | 51 | View |
| GLOBAL CROSSING LOCAL SERVICES, INC.-CT | 3493 | 44 | View |
| CABLEVISION LIGHTPATH, INC. - CT | 4950 | 43 | View |
| PAETEC COMMUNICATIONS, LLC - CT | 3083 | 39 | View |
| BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | 7230 | 38 | View |
| LEVEL 3 COMMUNICATIONS, LLC - CT | 4800 | 36 | View |
| CHOICE ONE COMMUNICATIONS, INC. - CT | 2706 | 35 | View |
| AT&T LOCAL | 7421 | 32 | View |
| PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 539 | 26 | View |
| USA MOBILITY WIRELESS, INC. | 6630 | 24 | View |
| BANDWIDTH.COM CLEC, LLC - CT | 199 | 22 | View |
| COMCAST PHONE OF CONNECTICUT, INC. - CT | 7621 | 17 | View |
| AMERICAN MESSAGING SERVICES, LLC | 9748 | 16 | View |
| ONVOY, LLC - CT | 639 | 16 | View |
| COX CONNECTICUT TELECOM, LLC | 7077 | 15 | View |
| VERIZON NEW YORK INC. | 9104 | 15 | View |
| METRO PCS, INC. | 5562 | 14 | View |
| CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | 3722 | 12 | View |
| BROADWING COMMUNICATIONS, LLC - CT | 9841 | 5 | View |
| CENTURYLINK COMMUNICATIONS LLC | 7575 | 5 | View |
| CHARTER FIBERLINK CT-CCO, LLC-CT | 777 | 5 | View |
| CTC COMMUNICATIONS CORP. - CT | 3863 | 5 | View |
| TELNYX LLC | 073 | 4 | View |
| TC SYSTEMS,INC. - NY | 7140 | 3 | View |
| BROADVOX-CLEC, LLC - CT | 790 | 2 | View |
| VONAGE NETWORK INC. | 197 | 2 | View |
| AQUIS COMMUNICATIONS, INC. | 6919 | 1 | View |
| BRIGHTLINK COMMUNICATIONS, LLC | 551 | 1 | View |
| IDT AMERICA CORP - CT | 466 | 1 | View |
| PAETEC COMMUNICATIONS, INC. - NY | 4152 | 1 | View |
| RCLEC, INC. | 156 | 1 | View |
| TERRA NOVA TELECOM INC. | 145 | 1 | View |
| YMAX COMMUNICATIONS CORP. - CT | 350 | 1 | View |
Top 200 carriers (by blocks) in this state.
Ad Unit
Optional ad.Number blocks (sample)
| NPA | NXX | Rate center | Carrier | Open |
|---|---|---|---|---|
| 203 | 200 | NEW HAVEN | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 203 | 201 | NEW HAVEN | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 202 | DARIEN | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 204 | GUILFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 205 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 206 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 207 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 208 | BRANFORD | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 203 | 209 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 210 | WILTON | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 212 | BRIDGEPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 213 | MERIDEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 214 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 215 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 216 | WESTPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 217 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 218 | BRIDGEPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 219 | STAMFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 220 | TRUMBULL | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 221 | WESTPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 222 | WESTPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 223 | STAMFORD | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 224 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 225 | HUNTINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 226 | WESTPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 227 | WESTPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 228 | WATERBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 229 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 230 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 231 | ANSONIDRBY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 232 | WATERBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 233 | WATERBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 234 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 235 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 236 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 237 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 238 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 239 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 240 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 241 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 242 | HUNTINGTON | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 243 | BRIDGEPORT | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 244 | RIDGEFIELD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 245 | MADISON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 246 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 247 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 248 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 249 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 250 | CHESHIRE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 251 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 252 | STAMFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 253 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 254 | FAIRFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 255 | FAIRFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 256 | FAIRFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 257 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 258 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 259 | FAIRFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 260 | BRIDGEPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 261 | TRUMBULL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 262 | WOODBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 263 | WOODBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 264 | WOODBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 265 | WALLINGFD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 266 | WOODBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 267 | WOODBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 268 | TRUMBULL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 269 | WALLINGFD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 270 | NEWTOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 271 | CHESHIRE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 272 | CHESHIRE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 273 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 274 | STAMFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 275 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 276 | STAMFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 277 | OLDGRNWICH | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 278 | ANSONIDRBY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 279 | BRIDGEPORT | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 280 | DARIEN | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 281 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 282 | STAMFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 283 | MILFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 284 | WALLINGFD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 285 | NEW HAVEN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 286 | NORWALK | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 203 | 287 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 288 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 289 | DANBURY | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 290 | BRIDGEPORT | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 291 | WESTPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 292 | FAIRFIELD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 293 | WESTPORT | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 294 | WALLINGFD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 295 | NORWALK | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 296 | BRIDGEPORT | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 297 | DANBURY | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 298 | NEW HAVEN | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 299 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 300 | DANBURY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 301 | MILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 302 | GREENWICH | TC SYSTEMS,INC. - NY | Prefix |
| 203 | 303 | WALLINGFD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 304 | NEWTOWN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 305 | ANSONIDRBY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 306 | MILFORD | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 307 | FAIRFIELD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 308 | ANSONIDRBY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 309 | DARIEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 310 | NEW CANAAN | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 312 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 313 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 314 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 315 | BRANFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 316 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 317 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 318 | MADISON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 319 | FAIRFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 320 | DARIEN | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 321 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 322 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 323 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 324 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 325 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 326 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 327 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 328 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 329 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 330 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 331 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 332 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 333 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 334 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 335 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 336 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 337 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 338 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 339 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 340 | GREENWICH | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 341 | WESTPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 342 | BRIDGEPORT | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 343 | ANSONIDRBY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 344 | OLDGRNWICH | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 345 | BRIDGEPORT | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 346 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 347 | BYRAM | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 348 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 349 | WESTPORT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 350 | MADISON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 351 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 352 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 353 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 354 | NORWALK | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 355 | STAMFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 356 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 357 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 358 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 359 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 360 | BRIDGEPORT | METRO PCS, INC. | Prefix |
| 203 | 361 | NEW HAVEN | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 362 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 363 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 364 | NEWTOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 365 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 366 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 367 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 368 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 369 | OLDGRNWICH | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 370 | NEW HAVEN | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 203 | 371 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 372 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 373 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 374 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 375 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 376 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 377 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 378 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 379 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 380 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 381 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 382 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 383 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 384 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 385 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 386 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 387 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 388 | STAMFORD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 389 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 390 | NEW HAVEN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 391 | STAMFORD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 392 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 393 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 394 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 395 | BRIDGEPORT | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 396 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 397 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 398 | NORWALK | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 399 | STAMFORD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 400 | TRUMBULL | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 401 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 402 | HUNTINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 403 | RIDGEFIELD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 404 | NEW HAVEN | BROADWING COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 405 | WOODBURY | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 406 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 407 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 408 | REDDING | AT&T LOCAL | Prefix |
| 203 | 409 | OLDGRNWICH | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 410 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 412 | NEW HAVEN | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 203 | 413 | GREENWICH | PAETEC COMMUNICATIONS, INC. - NY | Prefix |
| 203 | 414 | BRIDGEPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 415 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 416 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 417 | DANBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 418 | FAIRFIELD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 419 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 420 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 421 | MADISON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 422 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 423 | WILTON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 424 | DARIEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 425 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 426 | NEWTOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 427 | MERIDEN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 203 | 428 | STAMFORD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 429 | WESTPORT | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 430 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 431 | RIDGEFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 432 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 433 | BRANFORD | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 203 | 434 | NORWALK | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 435 | NEW HAVEN | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 436 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 437 | WATERBURY | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 203 | 438 | RIDGEFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 439 | CHESHIRE | COX CONNECTICUT TELECOM, LLC | Prefix |
| 203 | 440 | MERIDEN | COX CONNECTICUT TELECOM, LLC | Prefix |
| 203 | 441 | WOLCOTT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 442 | NEW CANAAN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 443 | MERIDEN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 203 | 444 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 445 | TRUMBULL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 446 | ANSONIDRBY | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 447 | HUNTINGTON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 448 | DANBURY | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 449 | BRIDGEPORT | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 450 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 451 | WESTPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 452 | TRUMBULL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 453 | GUILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 454 | WESTPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 455 | BRIDGEPORT | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 456 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 457 | GUILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 458 | GUILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 459 | TRUMBULL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 460 | DANBURY | AT&T LOCAL | Prefix |
| 203 | 461 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 462 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 463 | SEYMOUR | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 464 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 465 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 466 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 467 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 468 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 469 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 470 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 471 | XXXXXXXXXX | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 472 | XXXXXXXXXX | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 473 | XXXXXXXXXX | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 474 | XXXXXXXXXX | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 476 | XXXXXXXXXX | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 477 | NEW HAVEN | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 478 | XXXXXXXXXX | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 479 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 480 | FAIRFIELD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 481 | BRANFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 482 | DANBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 483 | BRANFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 484 | BRANFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 485 | GREENWICH | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 486 | WOODBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 487 | STAMFORD | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 488 | BRANFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 489 | GREENWICH | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 490 | NAUGATUCK | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 491 | NEWTOWN | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 203 | 492 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 493 | GEORGETOWN | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 494 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 495 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 496 | GREENWICH | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 497 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 498 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 499 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 500 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 501 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 502 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 503 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 504 | STAMFORD | CTC COMMUNICATIONS CORP. - CT | Prefix |
| 203 | 505 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 506 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 507 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 508 | NEW HAVEN | CTC COMMUNICATIONS CORP. - CT | Prefix |
| 203 | 509 | WATERBURY | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 510 | WATERBURY | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 512 | DANBURY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 513 | HUNTINGTON | AT&T LOCAL | Prefix |
| 203 | 514 | MERIDEN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 515 | NORWALK | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 516 | ANSONIDRBY | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 517 | STAMFORD | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 518 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 519 | WATERBURY | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 520 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 521 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 522 | BRIDGEPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 523 | NORWALK | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 524 | STAMFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 525 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 526 | BRIDGEPORT | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 527 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 528 | WATERBURY | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 529 | WILTON | AT&T LOCAL | Prefix |
| 203 | 530 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 531 | BYRAM | VERIZON NEW YORK INC. | Prefix |
| 203 | 532 | BYRAM | VERIZON NEW YORK INC. | Prefix |
| 203 | 533 | GUILFORD | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 534 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 535 | NEW HAVEN | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 203 | 536 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 537 | MERIDEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 538 | HUNTINGTON | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 539 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 540 | BRIDGEPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 541 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 542 | GREENWICH | AT&T LOCAL | Prefix |
| 203 | 543 | BRIDGEPORT | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 544 | GEORGETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 545 | BRIDGEPORT | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 546 | DANBURY | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 547 | STAMFORD | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 548 | STAMFORD | BROADWING COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 549 | BRIDGEPORT | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 550 | STAMFORD | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 551 | BRIDGEPORT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 552 | BYRAM | VERIZON NEW YORK INC. | Prefix |
| 203 | 553 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 554 | STAMFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 556 | BRIDGEPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 557 | WESTPORT | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 558 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 559 | DARIEN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 560 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 561 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 562 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 563 | WILTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 564 | STAMFORD | AT&T LOCAL | Prefix |
| 203 | 565 | WATERBURY | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 566 | STAMFORD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 567 | HUNTINGTON | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 568 | WATERBURY | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 569 | STAMFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 570 | STAMFORD | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 571 | WESTPORT | AT&T LOCAL | Prefix |
| 203 | 572 | BRIDGEPORT | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 573 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 574 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 575 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 576 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 577 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 578 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 579 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 580 | BYRAM | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 203 | 581 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 582 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 583 | BRIDGEPORT | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 584 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 585 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 586 | WOODBURY | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 587 | GEORGETOWN | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 588 | STAMFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 589 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 590 | TRUMBULL | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 591 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 592 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 593 | NORWALK | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 594 | NEW CANAAN | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 595 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 596 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 597 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 598 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 599 | MERIDEN | AT&T LOCAL | Prefix |
| 203 | 600 | MERIDEN | METRO PCS, INC. | Prefix |
| 203 | 601 | TRUMBULL | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 602 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 603 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 604 | NORWALK | BROADWING COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 605 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 606 | NEW HAVEN | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 607 | STAMFORD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 608 | MERIDEN | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 609 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 610 | BRIDGEPORT | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 203 | 612 | BRIDGEPORT | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 613 | NORWALK | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 614 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 615 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 616 | DANBURY | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 617 | DANBURY | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 618 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 619 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 620 | DARIEN | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 621 | DARIEN | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 622 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 623 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 624 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 625 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 626 | WALLINGFD | AT&T LOCAL | Prefix |
| 203 | 627 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 628 | DANBURY | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 629 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 630 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 631 | MERIDEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 632 | NAUGATUCK | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 633 | WOLCOTT | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 634 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 635 | WESTPORT | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 636 | DARIEN | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 637 | OLDGRNWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 638 | TRUMBULL | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 639 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 640 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 641 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 642 | NORWALK | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 643 | BRANFORD | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 644 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 645 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 646 | BRANFORD | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 647 | MILFORD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 648 | DANBURY | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 649 | CHESHIRE | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 650 | BRIDGEPORT | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 651 | CHESHIRE | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 652 | NEW CANAAN | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 653 | STAMFORD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 654 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 655 | DARIEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 656 | DARIEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 657 | NEW HAVEN | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 203 | 658 | STAMFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 659 | FAIRFIELD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 660 | BYRAM | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 661 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 662 | DARIEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 663 | NORWALK | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 664 | REDDING | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 665 | WILTON | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 666 | BRIDGEPORT | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 667 | STAMFORD | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 668 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 669 | DARIEN | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 670 | WATERBURY | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 203 | 671 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 672 | NEW HAVEN | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 673 | BRIDGEPORT | AT&T LOCAL | Prefix |
| 203 | 674 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 675 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 676 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 677 | WALLINGFD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 678 | WALLINGFD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 679 | WALLINGFD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 680 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 681 | BYRAM | VERIZON NEW YORK INC. | Prefix |
| 203 | 682 | WESTPORT | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 683 | BRIDGEPORT | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 684 | NEW HAVEN | METRO PCS, INC. | Prefix |
| 203 | 685 | BRIDGEPORT | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 686 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 687 | NEW HAVEN | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 688 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 689 | GUILFORD | AT&T LOCAL | Prefix |
| 203 | 690 | BRIDGEPORT | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 691 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 692 | FAIRFIELD | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 693 | MILFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 694 | MERIDEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 695 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 696 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 697 | WALLINGFD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 698 | OLDGRNWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 699 | CHESHIRE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 701 | MILFORD | AT&T LOCAL | Prefix |
| 203 | 702 | DANBURY | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 703 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 704 | WOLCOTT | BROADWING COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 705 | STAMFORD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 706 | WATERBURY | CTC COMMUNICATIONS CORP. - CT | Prefix |
| 203 | 707 | WATERBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 708 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 709 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 710 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 712 | HUNTINGTON | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 713 | MILFORD | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 714 | NAUGATUCK | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 715 | MERIDEN | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 716 | NEW CANAAN | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 717 | GREENWICH | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 718 | CHESHIRE | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 719 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 720 | NAUGATUCK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 721 | WATERBURY | AT&T LOCAL | Prefix |
| 203 | 722 | NORWALK | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 723 | NAUGATUCK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 724 | STAMFORD | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 725 | WATERBURY | COX CONNECTICUT TELECOM, LLC | Prefix |
| 203 | 726 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 727 | BRIDGEPORT | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 728 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 729 | NAUGATUCK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 730 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 731 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 732 | ANSONIDRBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 733 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 734 | ANSONIDRBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 735 | ANSONIDRBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 736 | ANSONIDRBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 737 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 738 | GUILFORD | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 739 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 740 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 741 | WALLINGFD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 742 | GREENWICH | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 743 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 744 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 745 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 746 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 747 | NEW HAVEN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 748 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 749 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 750 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 751 | ANSONIDRBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 752 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 753 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 754 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 755 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 756 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 757 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 758 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 759 | WATERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 760 | BRIDGEPORT | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 203 | 761 | WILTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 762 | WILTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 763 | FAIRFIELD | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 764 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 765 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 766 | NEW HAVEN | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 203 | 767 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 768 | WATERBURY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 769 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 770 | DANBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 771 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 772 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 773 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 774 | WALLINGFD | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 775 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 776 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 777 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 778 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 779 | MADISON | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 780 | NEW HAVEN | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 203 | 781 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 782 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 783 | MILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 784 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 785 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 786 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 787 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 788 | DANBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 789 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 790 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 791 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 792 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 793 | WALLINGFD | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 794 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 795 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 796 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 797 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 798 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 799 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 800 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 801 | NEW CANAAN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 802 | WATERBURY | METRO PCS, INC. | Prefix |
| 203 | 803 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 804 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 805 | WATERBURY | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 806 | CHESHIRE | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 807 | NORWALK | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 808 | WATERBURY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 809 | NEW HAVEN | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 810 | NORWALK | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 812 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 813 | BYRAM | TC SYSTEMS,INC. - NY | Prefix |
| 203 | 814 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 815 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 816 | TRUMBULL | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 817 | STAMFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 818 | NORWALK | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 819 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 820 | NORWALK | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 821 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 822 | NORWALK | AT&T LOCAL | Prefix |
| 203 | 823 | NEW HAVEN | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 203 | 824 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 825 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 826 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 827 | OLDGRNWICH | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 828 | SEYMOUR | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 829 | NORWALK | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 830 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 831 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 832 | STAMFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 833 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 834 | WILTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 835 | NORWALK | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 836 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 837 | DANBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 838 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 839 | NORWALK | USA MOBILITY WIRELESS, INC. | Prefix |
| 203 | 840 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 841 | WATERBURY | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 842 | NORWALK | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 843 | NEW HAVEN | AT&T LOCAL | Prefix |
| 203 | 844 | FAIRFIELD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 845 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 846 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 847 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 848 | NEW HAVEN | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 203 | 849 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 850 | NEW HAVEN | METRO PCS, INC. | Prefix |
| 203 | 851 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 852 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 853 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 854 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 855 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 856 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 857 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 858 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 859 | NEW HAVEN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 203 | 861 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 862 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 863 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 864 | BRIDGEPORT | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 865 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 866 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 867 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 868 | NEW HAVEN | AT&T LOCAL | Prefix |
| 203 | 869 | GREENWICH | VERIZON NEW YORK INC. | Prefix |
| 203 | 870 | BRIDGEPORT | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 871 | BRANFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 872 | CHESHIRE | AT&T LOCAL | Prefix |
| 203 | 873 | BRIDGEPORT | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 874 | MILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 875 | DARIEN | AT&T LOCAL | Prefix |
| 203 | 876 | MILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 877 | MILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 878 | MILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 879 | WOLCOTT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 880 | TRUMBULL | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 881 | SEYMOUR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 882 | MILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 883 | STAMFORD | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 884 | GUILFORD | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 885 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 886 | MERIDEN | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 887 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 888 | SEYMOUR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 889 | NEW HAVEN | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 890 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 891 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 892 | ANSONIDRBY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 893 | ANSONIDRBY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 894 | RIDGEFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 895 | TRUMBULL | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 896 | MADISON | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 897 | STAMFORD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 898 | DARIEN | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 899 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 900 | GREENWICH | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 901 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 902 | NEW HAVEN | ONVOY, LLC - CT | Prefix |
| 203 | 903 | NEW HAVEN | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 904 | NORWALK | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 905 | STAMFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 906 | ANSONIDRBY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 907 | NEW HAVEN | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 908 | BRIDGEPORT | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 909 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 910 | WATERBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 912 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 913 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 914 | STAMFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 915 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 916 | BRIDGEPORT | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 917 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 918 | STAMFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 919 | NORWALK | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 920 | NEW CANAAN | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 921 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 922 | HUNTINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 923 | BRIDGEPORT | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 924 | HUNTINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 925 | HUNTINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 926 | HUNTINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 927 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 928 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 929 | HUNTINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 930 | GREENWICH | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 931 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 932 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 933 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 934 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 935 | MERIDEN | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 203 | 936 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 937 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 938 | REDDING | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 939 | NORWALK | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 940 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 941 | SEYMOUR | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 203 | 942 | DANBURY | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 943 | NORWALK | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 944 | HUNTINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 945 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 946 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 947 | DANBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 948 | DANBURY | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 949 | WALLINGFD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 951 | MILFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 952 | NORWALK | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 953 | BRIDGEPORT | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 954 | ANSONIDRBY | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 955 | FAIRFIELD | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 956 | NORWALK | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 957 | NORWALK | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 960 | STAMFORD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 961 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 962 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 963 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 964 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 965 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 966 | NEW CANAAN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 967 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 968 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 969 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 970 | NORWALK | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 971 | GREENWICH | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 972 | NEW CANAAN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 973 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 974 | NEW HAVEN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 203 | 975 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 977 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 978 | STAMFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 979 | STAMFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 980 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 981 | NORWALK | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 982 | WATERBURY | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 983 | GREENWICH | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 203 | 984 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 985 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 986 | OLDGRNWICH | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 987 | GREENWICH | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 988 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 203 | 989 | STAMFORD | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 990 | OLDGRNWICH | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 991 | NORWALK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 203 | 992 | GREENWICH | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 203 | 993 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 203 | 994 | DANBURY | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 995 | BRIDGEPORT | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 203 | 996 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 203 | 997 | ANSONIDRBY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 203 | 998 | STAMFORD | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 203 | 999 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 475 | 200 | HUNTINGTON | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 201 | NEW HAVEN | METRO PCS, INC. | Prefix |
| 475 | 202 | NEW HAVEN | SPRINT SPECTRUM L.P. | Prefix |
| 475 | 204 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 205 | STAMFORD | CENTURYLINK COMMUNICATIONS LLC | Prefix |
| 475 | 206 | DANBURY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 207 | WOODBURY | CHARTER FIBERLINK CT-CCO, LLC-CT | Prefix |
| 475 | 208 | NORWALK | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 475 | 209 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 475 | 210 | BRIDGEPORT | CENTURYLINK COMMUNICATIONS LLC | Prefix |
| 475 | 212 | NAUGATUCK | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 213 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 214 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 215 | RIDGEFIELD | CENTURYLINK COMMUNICATIONS LLC | Prefix |
| 475 | 216 | ANSONIDRBY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 217 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 218 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 219 | WOLCOTT | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 475 | 220 | NEW HAVEN | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 475 | 221 | BRANFORD | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 475 | 222 | WATERBURY | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 223 | ANSONIDRBY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 224 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 225 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 226 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 227 | NEW HAVEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 475 | 228 | ANSONIDRBY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 229 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 230 | NEW HAVEN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 475 | 231 | TRUMBULL | CHARTER FIBERLINK CT-CCO, LLC-CT | Prefix |
| 475 | 232 | STAMFORD | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 475 | 233 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 475 | 234 | NEW HAVEN | TELNYX LLC | Prefix |
| 475 | 235 | WATERBURY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 475 | 236 | BRIDGEPORT | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 237 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 238 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 239 | TRUMBULL | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 240 | GREENWICH | TC SYSTEMS,INC. - NY | Prefix |
| 475 | 241 | NEW HAVEN | METRO PCS, INC. | Prefix |
| 475 | 242 | REDDING | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 243 | ANSONIDRBY | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 244 | CHESHIRE | ONVOY, LLC - CT | Prefix |
| 475 | 245 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 246 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 475 | 247 | NEW HAVEN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 475 | 248 | BRIDGEPORT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 475 | 249 | OLDGRNWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 475 | 250 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 251 | ANSONIDRBY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 475 | 252 | BYRAM | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 475 | 253 | WALLINGFD | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 254 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 255 | MERIDEN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 475 | 256 | DANBURY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 259 | DARIEN | SPRINT SPECTRUM L.P. | Prefix |
| 475 | 266 | NORWALK | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 475 | 269 | HUNTINGTON | BROADVOX-CLEC, LLC - CT | Prefix |
| 475 | 275 | BYRAM | ONVOY, LLC - CT | Prefix |
| 475 | 277 | WILTON | CENTURYLINK COMMUNICATIONS LLC | Prefix |
| 475 | 279 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 282 | BRIDGEPORT | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 475 | 283 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 288 | NORWALK | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 475 | 289 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 292 | STAMFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 475 | 298 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 299 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 300 | NEW HAVEN | VONAGE NETWORK INC. | Prefix |
| 475 | 313 | WATERBURY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 319 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 322 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 323 | NEWTOWN | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 325 | GEORGETOWN | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 475 | 328 | DARIEN | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 475 | 329 | DANBURY | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 475 | 330 | FAIRFIELD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 475 | 331 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 333 | STAMFORD | TELNYX LLC | Prefix |
| 475 | 338 | BRANFORD | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 475 | 343 | MERIDEN | METRO PCS, INC. | Prefix |
| 475 | 350 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 355 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 359 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 393 | NORWALK | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 395 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 399 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 400 | STAMFORD | ONVOY, LLC - CT | Prefix |
| 475 | 414 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 419 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 422 | BRIDGEPORT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 434 | NEW HAVEN | METRO PCS, INC. | Prefix |
| 475 | 439 | ANSONIDRBY | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 475 | 441 | NEW HAVEN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 444 | NEWTOWN | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 449 | BRIDGEPORT | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 459 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 465 | OLDGRNWICH | BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT | Prefix |
| 475 | 470 | NORWALK | ONVOY, LLC - CT | Prefix |
| 475 | 489 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 522 | MADISON | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 475 | 529 | DANBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 549 | MILFORD | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 475 | 557 | WATERBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 558 | NEW CANAAN | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 475 | 559 | WATERBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 619 | STAMFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 475 | 655 | NEW HAVEN | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 666 | WESTPORT | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 675 | SEYMOUR | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 475 | 685 | STAMFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 689 | WATERBURY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 701 | NAUGATUCK | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 731 | ANSONIDRBY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 747 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 775 | MERIDEN | ONVOY, LLC - CT | Prefix |
| 475 | 777 | ANSONIDRBY | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 800 | NEW HAVEN | ONVOY, LLC - CT | Prefix |
| 475 | 882 | HUNTINGTON | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 888 | FAIRFIELD | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 475 | 889 | NORWALK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 475 | 897 | GREENWICH | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 475 | 988 | BRIDGEPORT | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 475 | 999 | FAIRFIELD | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 860 | 200 | HARTFORD | ONVOY, LLC - CT | Prefix |
| 860 | 201 | TORRINGTON | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 202 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 204 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 205 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 206 | HARTFORD | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 207 | WILLIMNTIC | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 208 | WILLIMNTIC | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 209 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 210 | NEWMILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 212 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 213 | NORWICH | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 214 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 215 | NORWICH | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 216 | HARTFORD | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 217 | SIMSBURY | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 218 | HARTFORD | CTC COMMUNICATIONS CORP. - CT | Prefix |
| 860 | 219 | WINDSOR | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 220 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 221 | HARTFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 222 | NORWICH | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 860 | 223 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 224 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 225 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 226 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 227 | OLD SAYBRK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 228 | COLUMBIA | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 229 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 230 | PLAINFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 231 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 232 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 233 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 234 | WILLIMNTIC | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 235 | NEW LONDON | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 236 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 237 | NORWICH | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 238 | WINSTED | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 239 | ENFIELD | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 240 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 241 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 242 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 243 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 244 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 245 | MYSTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 246 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 247 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 248 | CORNWALL | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 249 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 250 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 251 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 252 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 253 | ENFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 254 | WINDSORLKS | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 255 | FARMINGTON | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 256 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 257 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 258 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 259 | NEWBRITAIN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 260 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 261 | BRISTOL | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 262 | MIDDLETOWN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 263 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 264 | SIMSBURY | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 265 | ENFIELD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 266 | GLASTONBY | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 267 | E HAMPTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 268 | MANCHESTER | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 269 | FARMINGTON | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 270 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 271 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 272 | ENFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 273 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 274 | WATERTOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 275 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 276 | SOUTHINGTN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 277 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 278 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 279 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 280 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 281 | MANCHESTER | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 282 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 283 | THOMASTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 284 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 285 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 286 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 287 | NEW LONDON | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 288 | MANCHESTER | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 289 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 290 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 291 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 292 | WINDSORLKS | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 293 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 294 | TORRINGTON | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 295 | E HAMPTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 296 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 297 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 298 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 299 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 300 | NORWICH | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 301 | MIDDLETOWN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 302 | SOUTHINGTN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 303 | NORWICH | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 304 | OLD SAYBRK | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 305 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 306 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 307 | HARWINTON | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 308 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 309 | HARWINTON | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 310 | HARTFORD | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 312 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 313 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 314 | BRISTOL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 315 | PUTNAM | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 316 | MIDDLETOWN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 317 | PLAINFIELD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 318 | CORNWALL | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 319 | NORWICH | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 320 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 321 | FARMINGTON | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 322 | DEEP RIVER | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 323 | SIMSBURY | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 324 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 325 | SIMSBURY | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 326 | NEW LONDON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 327 | MANCHESTER | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 328 | GLASTONBY | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 329 | SOUTHINGTN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 330 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 331 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 332 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 333 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 334 | NORWICH | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 335 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 336 | WILLIMNTIC | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 337 | COLUMBIA | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 338 | GLASTONBY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 339 | OLD SAYBRK | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 340 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 341 | STORRS | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 342 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 343 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 344 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 345 | HADDAM | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 346 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 347 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 348 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 349 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 350 | NEWMILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 351 | PLAINVILLE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 352 | CANTON | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 353 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 354 | NEWMILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 355 | NEWMILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 356 | NEWBRITAIN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 357 | NEWBRITAIN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 358 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 359 | COLUMBIA | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 360 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 361 | LITCHFIELD | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 860 | 362 | CANAAN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 363 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 364 | SHARON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 365 | E HAMPTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 366 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 367 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 368 | GLASTONBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 369 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 370 | WINDSORLKS | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 371 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 372 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 373 | NORWICH | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 374 | DEEP RIVER | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 375 | ROCKVILLE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 376 | JEWETTCITY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 377 | WILLIMNTIC | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 378 | SOUTHINGTN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 379 | WINSTED | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 380 | HARTFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 381 | LEDYARD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 382 | PUTNAM | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 383 | NORWICH | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 384 | SOUTHINGTN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 385 | SOUTHINGTN | AT&T LOCAL | Prefix |
| 860 | 386 | WINDSORLKS | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 387 | TORRINGTON | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 388 | OLD SAYBRK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 389 | NEW LONDON | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 390 | LYME | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 860 | 391 | OLD SAYBRK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 392 | SIMSBURY | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 393 | LITCHFIELD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 394 | ENFIELD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 395 | OLD SAYBRK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 396 | MYSTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 397 | SHARON | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 398 | MIDDLETOWN | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 399 | OLD SAYBRK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 400 | LEDYARD | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 860 | 402 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 403 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 404 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 405 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 406 | SOUTHINGTN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 407 | JEWETTCITY | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 860 | 408 | SIMSBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 409 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 410 | PLAINVILLE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 412 | DANIELSON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 413 | SIMSBURY | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 414 | SOUTHINGTN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 415 | MYSTIC | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 416 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 417 | WATERTOWN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 418 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 419 | CORNWALL | BROADWING COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 420 | STORRS | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 421 | CANTON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 422 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 423 | WILLIMNTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 424 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 425 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 426 | SOUTHINGTN | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 427 | STORRS | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 428 | WILLIMNTIC | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 429 | STORRS | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 430 | GLASTONBY | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 431 | SIMSBURY | AT&T LOCAL | Prefix |
| 860 | 432 | MANCHESTER | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 433 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 434 | LYME | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 435 | LAKEVILLE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 436 | HARTFORD | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 437 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 438 | NEWBRITAIN | AT&T LOCAL | Prefix |
| 860 | 439 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 440 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 441 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 442 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 443 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 444 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 445 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 446 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 447 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 448 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 449 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 450 | WILLIMNTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 451 | NIANTIC | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 452 | KILLINGWTH | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 453 | CANAAN | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 454 | ROCKVILLE | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 455 | WILLIMNTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 456 | WILLIMNTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 457 | PLAINFIELD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 458 | STAFFD SPG | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 459 | TORRINGTON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 460 | NEW LONDON | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 461 | HARTFORD | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 462 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 463 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 464 | LEDYARD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 465 | WILLIMNTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 466 | HARTFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 467 | E HAMPTON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 468 | LEBANON | CHARTER FIBERLINK CT-CCO, LLC-CT | Prefix |
| 860 | 469 | WINSTED | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 470 | FARMINGTON | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 860 | 471 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 472 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 473 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 474 | MANCHESTER | AT&T LOCAL | Prefix |
| 860 | 477 | STORRS | CHARTER FIBERLINK CT-CCO, LLC-CT | Prefix |
| 860 | 478 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 479 | PLAINVILLE | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 480 | TORRINGTON | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 481 | PUTNAM | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 482 | TORRINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 483 | WATERTOWN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 484 | THOMASTON | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 485 | HARWINTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 486 | STORRS | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 487 | STORRS | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 488 | NEWMILFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 489 | TORRINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 490 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 491 | TORRINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 492 | SHARON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 493 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 494 | GLASTONBY | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 495 | PAWCATUCK | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 496 | TORRINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 497 | NOTHOMPSON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 498 | COVENTRY | CHARTER FIBERLINK CT-CCO, LLC-CT | Prefix |
| 860 | 499 | CORNWALL | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 500 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 501 | NEW LONDON | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 502 | HARTFORD | AT&T LOCAL | Prefix |
| 860 | 503 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 504 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 505 | NEWBRITAIN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 506 | BRISTOL | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 507 | FARMINGTON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 508 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 509 | HARTFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 510 | OLD SAYBRK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 512 | MANCHESTER | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 513 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 514 | NEW LONDON | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 515 | NEWBRITAIN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 516 | BRISTOL | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 517 | PLAINVILLE | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 518 | NEWBRITAIN | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 519 | HARTFORD | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 520 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 521 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 522 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 523 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 524 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 525 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 526 | DEEP RIVER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 527 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 528 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 529 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 530 | COLUMBIA | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 531 | COLCHESTER | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 532 | DEEP RIVER | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 533 | MANCHESTER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 534 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 535 | MYSTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 536 | MYSTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 537 | COLCHESTER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 538 | NEWBRITAIN | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 539 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 540 | BRISTOL | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 541 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 542 | NORFOLK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 543 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 544 | COVENTRY | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 545 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 546 | CANTERBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 547 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 548 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 549 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 550 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 551 | XXXXXXXXXX | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 552 | CLINTON | AT&T LOCAL | Prefix |
| 860 | 553 | STORRS | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 554 | HADDAM | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 556 | CANTERBURY | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 557 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 558 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 559 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 560 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 561 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 562 | ENFIELD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 563 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 564 | PLAINFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 565 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 566 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 567 | LITCHFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 568 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 569 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 570 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 571 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 572 | MYSTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 573 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 574 | NEW LONDON | METRO PCS, INC. | Prefix |
| 860 | 575 | OLD SAYBRK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 576 | WILLIMNTIC | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 577 | OLD SAYBRK | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 578 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 579 | HADDAM | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 580 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 581 | ESSEX | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 582 | BRISTOL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 583 | BRISTOL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 584 | BRISTOL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 585 | BRISTOL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 586 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 587 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 588 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 589 | BRISTOL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 591 | JEWETTCITY | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 592 | KENT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 593 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 594 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 595 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 596 | LAKEVILLE | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 597 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 598 | LYME | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 599 | PAWCATUCK | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 600 | LITCHFIELD | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 860 | 601 | TORRINGTON | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 602 | WINDSOR | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 603 | COLCHESTER | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 604 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 605 | HARWINTON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 606 | FARMINGTON | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 607 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 608 | NORWICH | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 609 | SOUTHINGTN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 610 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 612 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 613 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 614 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 615 | MOODUS | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 616 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 617 | WILLIMNTIC | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 618 | TORRINGTON | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 619 | WASHINGTON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 620 | SOUTHINGTN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 621 | SOUTHINGTN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 622 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 623 | WINDSORLKS | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 624 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 625 | NEW LONDON | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 626 | TORRINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 627 | WINDSORLKS | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 628 | SOUTHINGTN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 629 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 630 | PUTNAM | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 631 | WATERTOWN | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 632 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 633 | GLASTONBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 634 | WILLIMNTIC | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 635 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 636 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 637 | SOUTHINGTN | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 638 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 639 | NORWICH | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 640 | WINDSOR | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 641 | BRISTOL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 642 | LEBANON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 643 | MANCHESTER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 644 | MANCHESTER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 645 | MANCHESTER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 646 | MANCHESTER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 647 | MANCHESTER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 648 | MANCHESTER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 649 | MANCHESTER | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 650 | PAWCATUCK | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 860 | 651 | SIMSBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 652 | GLASTONBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 653 | SIMSBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 654 | WINDSORLKS | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 655 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 656 | HARTFORD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 657 | GLASTONBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 658 | SIMSBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 659 | GLASTONBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 660 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 661 | OLD SAYBRK | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 662 | ESSEX | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 663 | KILLINGWTH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 664 | CLINTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 665 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 666 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 667 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 668 | WINDSORLKS | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 669 | CLINTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 670 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 671 | CORNWALL | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 672 | CORNWALL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 673 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 674 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 675 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 676 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 677 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 678 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 679 | FARMINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 680 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 681 | SOUTHINGTN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 682 | GLASTONBY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 683 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 684 | STAFFD SPG | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 685 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 686 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 687 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 688 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 689 | HARWINTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 690 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 691 | NIANTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 692 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 693 | CANTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 694 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 695 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 696 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 697 | WINDSOR | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 698 | ENFIELD | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 699 | NEW LONDON | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 701 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 702 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 703 | FARMINGTON | AT&T LOCAL | Prefix |
| 860 | 704 | MIDDLETOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 705 | NORWICH | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 706 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 707 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 708 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 709 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 710 | NORWICH | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 712 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 713 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 714 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 715 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 716 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 717 | NEWMILFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 718 | DEEP RIVER | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 719 | HARTFORD | METRO PCS, INC. | Prefix |
| 860 | 720 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 721 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 722 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 723 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 724 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 725 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 726 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 727 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 728 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 729 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 730 | MANCHESTER | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 731 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 732 | NEW LONDON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 733 | HARWINTON | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 734 | GLASTONBY | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 735 | SIMSBURY | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 736 | SOUTHINGTN | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 737 | WINDSOR | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 738 | WINSTED | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 739 | NIANTIC | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 740 | MIDDLETOWN | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 741 | ENFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 742 | COVENTRY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 743 | NEW LONDON | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 744 | CLINTON | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 860 | 745 | ENFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 746 | ENFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 747 | PLAINVILLE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 748 | HARTFORD | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 749 | ENFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 750 | NEWMILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 751 | FARMINGTON | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 752 | WINDSORLKS | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 753 | PUTNAM | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 754 | MIDDLETOWN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 755 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 756 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 757 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 758 | WINDSORLKS | AT&T LOCAL | Prefix |
| 860 | 759 | MIDDLETOWN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 760 | HARTFORD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 761 | HARTFORD | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 762 | HARTFORD | AQUIS COMMUNICATIONS, INC. | Prefix |
| 860 | 763 | ENFIELD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 764 | CANTON | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 765 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 766 | BRISTOL | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 767 | ESSEX | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 768 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 769 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 770 | NEWBRITAIN | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 771 | WILLIMNTIC | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 772 | NEW LONDON | IDT AMERICA CORP - CT | Prefix |
| 860 | 773 | FARMINGTON | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 860 | 774 | DANIELSON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 775 | E HAMPTON | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 776 | ENFIELD | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 777 | FARMINGTON | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 778 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 779 | DANIELSON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 780 | GLASTONBY | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 781 | GLASTONBY | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 782 | HARWINTON | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 783 | MANCHESTER | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 784 | SIMSBURY | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 785 | HARTFORD | BRIGHTLINK COMMUNICATIONS, LLC | Prefix |
| 860 | 786 | WILLIMNTIC | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 787 | WINDSOR | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 788 | MIDDLETOWN | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 789 | WINDSORLKS | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 790 | DEEP RIVER | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 791 | MANCHESTER | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 860 | 792 | PUTNAM | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 793 | PLAINVILLE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 794 | HARTFORD | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 795 | HARWINTON | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 796 | HARTFORD | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 797 | NEWBRITAIN | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 798 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 799 | NEWMILFORD | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 800 | NORWICH | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 860 | 801 | NEWBRITAIN | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 860 | 802 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 803 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 804 | WINDSORLKS | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 805 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 806 | HARWINTON | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 807 | MIDDLETOWN | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 808 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 809 | LEBANON | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 860 | 810 | HARTFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 860 | 812 | MANCHESTER | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 813 | E HAMPTON | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 814 | ENFIELD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 815 | GLASTONBY | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 816 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 817 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 818 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 819 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 820 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 821 | PUTNAM | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 822 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 823 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 824 | CANAAN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 825 | HARTFORD | USA MOBILITY WIRELESS, INC. | Prefix |
| 860 | 826 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 827 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 828 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 829 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 830 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 831 | WINDSORLKS | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 832 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 833 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 834 | MIDDLETOWN | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 835 | ENFIELD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 836 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 837 | HARTFORD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 838 | HARTFORD | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 839 | NEWBRITAIN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 840 | HARTFORD | METRO PCS, INC. | Prefix |
| 860 | 841 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 842 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 843 | SIMSBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 844 | SIMSBURY | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 845 | BRISTOL | AT&T LOCAL | Prefix |
| 860 | 846 | PLAINVILLE | AT&T LOCAL | Prefix |
| 860 | 847 | WINDSOR | AT&T LOCAL | Prefix |
| 860 | 848 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 849 | ENFIELD | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 850 | NIANTIC | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 860 | 851 | STAFFD SPG | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 852 | MIDDLETOWN | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 853 | OLD SAYBRK | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 854 | MIDDLETOWN | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 860 | 855 | PLAINVILLE | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 856 | HARTFORD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 857 | NEW LONDON | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 858 | ROCKVILLE | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 859 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 861 | NORWICH | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 862 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 863 | SOUTHINGTN | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 864 | STORRS | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 865 | NEW LONDON | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 866 | TORRINGTON | GLOBAL CROSSING LOCAL SERVICES, INC.-CT | Prefix |
| 860 | 867 | NEW LONDON | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 868 | WASHINGTON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 869 | HARTFORD | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 870 | ROCKVILLE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 871 | ROCKVILLE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 872 | ROCKVILLE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 873 | MOODUS | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 874 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 875 | ROCKVILLE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 876 | OLD SAYBRK | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 877 | SOUTHINGTN | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 878 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 879 | DEEP RIVER | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 880 | THOMASTON | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 860 | 881 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 882 | HARTFORD | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 860 | 883 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 884 | NORWICH | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 885 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 886 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 887 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 888 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 889 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 890 | HARTFORD | METRO PCS, INC. | Prefix |
| 860 | 891 | MOODUS | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 892 | NORWICH | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 893 | NEWBRITAIN | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 894 | MIDDLETOWN | AT&T LOCAL | Prefix |
| 860 | 895 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 896 | ROCKVILLE | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 897 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 898 | NEWMILFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 899 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 900 | HARTFORD | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 860 | 901 | WINDSORLKS | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 902 | WINDSOR | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 903 | WINDSORLKS | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 904 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 905 | WINDSOR | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 906 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 907 | WINDSOR | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 908 | NORWICH | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 909 | WINSTED | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 860 | 910 | NEW LONDON | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 912 | NEW LONDON | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 913 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 914 | NEWBRITAIN | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 915 | NEWMILFORD | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 916 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 917 | NORWICH | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 918 | GLASTONBY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 919 | SOUTHINGTN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 920 | HARTFORD | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 921 | TORRINGTON | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 922 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 923 | PUTNAM | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 924 | HARTFORD | YMAX COMMUNICATIONS CORP. - CT | Prefix |
| 860 | 925 | WINDSOR | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 860 | 926 | ROCKVILLE | COX CONNECTICUT TELECOM, LLC | Prefix |
| 860 | 927 | KENT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 928 | PUTNAM | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 929 | HARTFORD | CTC COMMUNICATIONS CORP. - CT | Prefix |
| 860 | 930 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 931 | WILLIMNTIC | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 932 | DANIELSON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 933 | WILLIMNTIC | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 934 | NORWICH | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 935 | NOTHOMPSON | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 936 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 937 | HARTFORD | COMCAST PHONE OF CONNECTICUT, INC. - CT | Prefix |
| 860 | 938 | DEEP RIVER | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 939 | HARTFORD | AMERICAN MESSAGING SERVICES, LLC | Prefix |
| 860 | 940 | BRISTOL | CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC | Prefix |
| 860 | 941 | NEW LONDON | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 942 | WILLIMNTIC | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 943 | OLD SAYBRK | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 944 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 945 | WATERTOWN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 946 | NEWMILFORD | PAETEC COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 947 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 948 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 949 | NORWICH | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 951 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 952 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 953 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 954 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 955 | HARTFORD | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 860 | 956 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 957 | NEWMILFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 960 | TORRINGTON | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 961 | NEW LONDON | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 962 | ENFIELD | AT&T LOCAL | Prefix |
| 860 | 963 | PUTNAM | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 964 | OLD SAYBRK | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 965 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 966 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 967 | HARTFORD | LEVEL 3 COMMUNICATIONS, LLC - CT | Prefix |
| 860 | 968 | GLASTONBY | AT&T LOCAL | Prefix |
| 860 | 969 | HARTFORD | BROADVOX-CLEC, LLC - CT | Prefix |
| 860 | 970 | HARTFORD | ONVOY, LLC - CT | Prefix |
| 860 | 971 | STAFFD SPG | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 860 | 972 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 973 | BRISTOL | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 974 | PUTNAM | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 975 | MIDDLETOWN | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Prefix |
| 860 | 977 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 978 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 979 | ROCKVILLE | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 980 | MYSTIC | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 860 | 982 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 983 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 984 | NEW LONDON | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 985 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 986 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 987 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 988 | SIMSBURY | CHOICE ONE COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 989 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 990 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 991 | NEWBRITAIN | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 992 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 860 | 993 | HARTFORD | SPRINT SPECTRUM L.P. | Prefix |
| 860 | 994 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 995 | HARTFORD | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 996 | HARTFORD | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | Prefix |
| 860 | 997 | HARTFORD | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 860 | 998 | HARTFORD | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | Prefix |
| 860 | 999 | HARTFORD | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 959 | 200 | HARTFORD | CENTURYLINK COMMUNICATIONS LLC | Prefix |
| 959 | 201 | NEW LONDON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 959 | 202 | TORRINGTON | METRO PCS, INC. | Prefix |
| 959 | 204 | HARTFORD | RCLEC, INC. | Prefix |
| 959 | 205 | DANIELSON | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 959 | 206 | HARTFORD | VONAGE NETWORK INC. | Prefix |
| 959 | 207 | COLCHESTER | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 959 | 208 | NEWBRITAIN | SPRINT SPECTRUM L.P. | Prefix |
| 959 | 209 | WATERTOWN | CABLEVISION LIGHTPATH, INC. - CT | Prefix |
| 959 | 222 | NEWBRITAIN | TELNYX LLC | Prefix |
| 959 | 230 | HARTFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 959 | 242 | NORWICH | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 959 | 245 | NEWBRITAIN | ONVOY, LLC - CT | Prefix |
| 959 | 265 | ESSEX | ONVOY, LLC - CT | Prefix |
| 959 | 282 | HARTFORD | NEW CINGULAR WIRELESS PCS, LLC - DC | Prefix |
| 959 | 299 | HARTFORD | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | Prefix |
| 959 | 333 | HARTFORD | TELNYX LLC | Prefix |
| 959 | 335 | NORFOLK | ONVOY, LLC - CT | Prefix |
| 959 | 444 | WILLIMNTIC | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | Prefix |
| 959 | 456 | CANTERBURY | BANDWIDTH.COM CLEC, LLC - CT | Prefix |
| 959 | 666 | HARTFORD | ONVOY, LLC - CT | Prefix |
| 959 | 777 | HARTFORD | ONVOY, LLC - CT | Prefix |
| 959 | 888 | HARTFORD | ONVOY, LLC - CT | Prefix |
| 959 | 900 | HARTFORD | TERRA NOVA TELECOM INC. | Prefix |
| 959 | 929 | WILLIMNTIC | OMNIPOINT COMMUNICATIONS, INC. - CT | Prefix |
| 959 | 999 | HARTFORD | ONVOY, LLC - CT | Prefix |
Showing up to 2,000 blocks (cap).
SEO keywords covered
CT phone directory • CT area codes • CT prefixes • carrier lookup • rate center lookup
© 2026 Phone Directory.
Light theme (AdSense-ready).