AdSense placeholder
Paste your AdSense script + ad units in src/layout_bottom.php, then set $ads_enabled = true.
Home / Area 510
Ad slot (sidebar)
Ad Unit
Place a vertical ad here.| Prefix | City | Company | Line type | Open |
|---|---|---|---|---|
| 527 | Berkeley | Pacific Bell | Landline | View |
| 528 | Berkeley | Pacific Bell | Landline | View |
| 529 | Richmond | Pacific Bell | Landline | View |
| 530 | Oakland | Pacific Bell | Landline | View |
| 531 | Oakland | Pacific Bell | Landline | View |
| 532 | Oakland | Pacific Bell | Landline | View |
| 533 | Oakland | Pacific Bell | Landline | View |
| 534 | Oakland | Pacific Bell | Landline | View |
| 535 | Oakland | Pacific Bell | Landline | View |
| 536 | Oakland | Pacific Bell | Landline | View |
| 537 | Hayward | Pacific Bell | Landline | View |
| 538 | Hayward | Pacific Bell | Landline | View |
| 539 | Hayward | American Messaging (am) Inc. | Landline | View |
| 540 | Berkeley | Pacific Bell | Landline | View |
| 541 | San Francisco | New Cingular Wireless Pcs Llc | Wireless | View |
| 542 | Pleasanton | Mcimetro Access Transmission Services Llc | Landline | View |
| 543 | Oakland | Sprint Spectrum L.p. | Wireless | View |
| 544 | Oakland | Pac - West Telecomm Inc. | Landline | View |
| 545 | Fremont | Xo California Inc. | Landline | View |
| 546 | Oakland | American Messaging Services Llc | Landline | View |
| 547 | Oakland | Pacific Bell | Landline | View |
| 548 | Berkeley | Pacific Bell | Landline | View |
| 549 | Berkeley | Pacific Bell | Landline | View |
| 550 | Oakland | Global Crossing Local Services Inc.-ca | Landline | View |
| 551 | Oakland | Sprint Spectrum L.p. | Wireless | View |
| 552 | Pleasanton | Cellco Partnership Dba Verizon Wireless - Ca | Wireless | View |
| 553 | Oakland | Pacific Bell | Landline | View |
| 554 | Oakland | 33 Wireless Inc. | Wireless | View |
| 557 | Dublin | Sprint Spectrum L.p. | Wireless | View |
| 558 | Berkeley | Pacific Bell | Landline | View |
| 559 | Berkeley | Pacific Bell | Landline | View |
| 562 | Oakland | Pacific Bell | Landline | View |
| 563 | Oakland | Pacific Bell | Landline | View |
| 564 | San Francisco | Mcimetro Access Transmission Services Llc | Landline | View |
| 565 | Oakland | T-mobile Usa Inc. | Wireless | View |
| 566 | Pleasanton | Cellco Partnership Dba Verizon Wireless - Ca | Wireless | View |
| 567 | Oakland | Pacific Bell | Landline | View |
| 568 | Oakland | Pacific Bell | Landline | View |
| 569 | Oakland | Pacific Bell | Landline | View |
| 572 | Hayward | Mci Worldcom Communications Inc. Ca | Landline | View |
| 573 | Hayward | Comcast Phone Of California Llc - Ca | Landline | View |
| 574 | Fremont | Pacific Bell | Landline | View |
| 575 | Oakland | Metro Pcs Inc. | Landline | View |
| 576 | Fremont | Xo California Inc. | Landline | View |
| 577 | Oakland | Pacific Bell | Landline | View |
| 578 | Fremont | Xo California Inc. | Landline | View |
| 579 | San Francisco | New Cingular Wireless Pcs Llc | Wireless | View |
| 580 | Fremont | Xo California Inc. | Landline | View |
| 581 | Hayward | Pacific Bell | Landline | View |
| 582 | Hayward | Pacific Bell | Landline | View |
| 583 | Hayward | Pacific Bell | Landline | View |
| 584 | San Francisco | Mcimetro Access Transmission Services Llc | Landline | View |
| 585 | San Francisco | Mpower Communications Corp - Ca | Landline | View |
| 586 | Oakland | Comcast Phone Of California Llc - Ca | Landline | View |
| 587 | Oakland | Pacific Bell | Landline | View |
| 588 | Oakland | Pac - West Telecomm Inc. | Landline | View |
| 589 | San Francisco | New Cingular Wireless Pcs Llc | Wireless | View |
| 590 | San Francisco | New Cingular Wireless Pcs Llc | Wireless | View |
| 591 | Oakland | American Messaging Services Llc | Landline | View |
| 592 | San Francisco | Broadwing Communications Llc - Ca | Landline | View |
| 593 | Oakland | Sprint Spectrum L.p. | Wireless | View |
| 594 | Oakland | Pacific Bell | Landline | View |
| 595 | Oakland | Pacific Bell | Landline | View |
| 596 | Oakland | Pacific Bell | Landline | View |
| 597 | Oakland | Pacific Bell | Landline | View |
| 598 | Oakland | T-mobile Usa Inc. | Wireless | View |
| 599 | San Francisco | New Cingular Wireless Pcs Llc | Wireless | View |
| 600 | Oakland | Cf Communications Llc Dba Telekenex - Ca | Landline | View |
| 601 | Oakland | Pacific Bell | Landline | View |
| 604 | San Francisco | New Cingular Wireless Pcs Llc | Wireless | View |
| 606 | San Francisco | Cellco Partnership Dba Verizon Wireless - Ca | Wireless | View |
| 608 | Fremont | Pacific Bell | Landline | View |
| 610 | San Francisco | New Cingular Wireless Pcs Llc | Wireless | View |
| 612 | San Francisco | New Cingular Wireless Pcs Llc | Wireless | View |
| 613 | Oakland | Pacific Bell | Landline | View |
| 614 | San Leandro | Pacific Bell | Landline | View |
| 615 | Oakland | Pacific Bell | Landline | View |
| 618 | San Leandro | Pacific Bell | Landline | View |
| 619 | San Francisco | Broadwing Communications Llc - Ca | Landline | View |
| 620 | Richmond | Pacific Bell | Landline | View |
| 621 | San Francisco | Mcimetro Access Transmission Services Llc | Landline | View |
| 622 | Oakland | Pacific Bell | Landline | View |
| 623 | Fremont | Pacific Bell | Landline | View |
| 624 | Fremont | Pacific Bell | Landline | View |
| 625 | Oakland | Pacific Bell | Landline | View |
| 627 | Oakland | Pacific Bell | Landline | View |
| 628 | Oakland | Pacific Bell | Landline | View |
| 629 | San Francisco | Level 3 Communications Llc - Ca | Landline | View |
| 630 | Livermore | Usa Mobility Wireless Inc. | Wireless | View |
| 632 | Oakland | Pacific Bell | Landline | View |
| 633 | Oakland | Pacific Bell | Landline | View |
| 635 | Oakland | Pacific Bell | Landline | View |
| 636 | Oakland | Pacific Bell | Landline | View |
| 637 | Oakland | Pacific Bell | Landline | View |
| 638 | Oakland | Pacific Bell | Landline | View |
| 639 | Oakland | Pacific Bell | Landline | View |
| 641 | Livermore | Usa Mobility Wireless Inc. | Wireless | View |
| 642 | Berkeley | Pacific Bell | Landline | View |
| 643 | Berkeley | Pacific Bell | Landline | View |
| 644 | Berkeley | Pacific Bell | Landline | View |
Page Overview
This page provides detailed information and helpful insights related to your search. All data is based on telecom assignment records and community user reports. Use the navigation above to explore related area codes, prefixes, and reported numbers.
© 2026 Phone Directory.
Light theme (AdSense-ready).