All assignees
655 prefixes in 925 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 925-501 | ANTIOCH | 6529 | 2022-05-17 | Yes |
| 925-502 | DANVILLE | 6010 | 2022-07-21 | Yes |
| 925-503 | ANTIOCH | 6529 | 2017-03-23 | Yes |
| 925-504 | PSBG WEST | 6010 | 2022-12-16 | Yes |
| 925-505 | LIVERMORE | 490J | 2022-07-28 | Yes |
| 925-506 | ANTIOCH | 6529 | 2023-01-19 | Yes |
| 925-507 | CONCORD | 6006 | 2023-01-04 | Yes |
| 925-508 | ECONTRCOST | 649C | 2023-03-31 | Yes |
| 925-509 | BSHP RNCH | 6630 | — | — |
| 925-510 | CONCORD | 5562 | 2018-03-23 | Yes |
| 925-511 | XXXXXXXXXX | MULT | — | — |
| 925-512 | WALNUT CRK | 649C | 2023-10-02 | Yes |
| 925-513 | ECONTRCOST | 9740 | — | Yes |
| 925-514 | MARTINEZ | 6010 | 2023-10-06 | Yes |
| 925-515 | CONCORD | 649C | 2020-11-11 | Yes |
| 925-516 | ECONTRCOST | 9740 | — | — |
| 925-517 | PSBG WEST | 649C | — | Yes |
| 925-518 | LIVERMORE | 5562 | — | Yes |
| 925-519 | PLEASANTON | 6006 | — | — |
| 925-520 | PLEASANTON | 9740 | — | Yes |
| 925-521 | CONCORD | 9740 | — | Yes |
| 925-522 | ANTIOCH | 9740 | — | Yes |
| 925-523 | PLEASANTON | 9740 | — | Yes |
| 925-524 | CLAYTON | 9740 | — | Yes |
| 925-525 | LIVERMORE | 5562 | — | Yes |
| 925-526 | PITTSBURG | 671J | — | Yes |
| 925-527 | WALNUT CRK | 9262 | — | Yes |
| 925-528 | ORINDA | 6529 | — | Yes |
| 925-529 | ANTIOCH | 649C | — | Yes |
| 925-531 | LAFAYETTE | 624H | 2023-11-27 | Yes |
| 925-532 | WALNUT CRK | 073H | 2017-03-17 | Yes |
| 925-533 | LIVERMORE | 965H | 2020-09-17 | Yes |
| 925-534 | LIVERMORE | 8826 | 2019-08-06 | Yes |
| 925-535 | PLEASANTON | 5562 | — | Yes |
| 925-536 | CONCORD | 073H | 2017-03-17 | Yes |
| 925-537 | LIVERMORE | 516J | 2022-01-14 | Yes |
| 925-538 | ANTIOCH | 6529 | 2024-01-19 | Yes |
| 925-539 | ANTIOCH | 6529 | 2024-06-21 | Yes |
| 925-540 | DANVILLE | 6010 | 2024-11-20 | Yes |
| 925-541 | LIVERMORE | 0051 | 2024-09-12 | — |
| 925-542 | WALNUT CRK | 6006 | 2017-12-26 | Yes |
| 925-543 | BSHP RNCH | 9740 | — | Yes |
| 925-544 | ANTIOCH | 6010 | 2025-04-09 | Yes |
| 925-545 | ANTIOCH | 6529 | 2025-06-25 | Yes |
| 925-546 | WALNUT CRK | 516J | 2022-01-07 | Yes |
| 925-547 | PITTSBURG | 490J | 2026-01-05 | Yes |
| 925-548 | DUBLN-SNRM | 6010 | — | — |
| 925-549 | DUBLN-SNRM | 6010 | — | Yes |
| 925-550 | ANTIOCH | 6010 | — | — |
| 925-551 | DUBLN-SNRM | 9740 | — | Yes |
| 925-552 | DANVILLE | 9740 | — | — |
| 925-553 | DANVILLE | 7229 | — | Yes |
| 925-554 | ANTIOCH | 6529 | 2026-01-06 | Yes |
| 925-555 | DIR ASST | MULT | — | — |
| 925-556 | DUBLN-SNRM | 9740 | — | — |
| 925-557 | DUBLN-SNRM | 7240 | — | Yes |
| 925-558 | DUBLN-SNRM | 7229 | — | Yes |
| 925-559 | ECONTRCOST | 6010 | 2026-01-07 | Yes |
| 925-560 | DUBLN-SNRM | 9740 | — | Yes |
| 925-565 | ANTIOCH | 5562 | 2001-09-21 | — |
| 925-566 | CONCORD | 7145 | — | Yes |
| 925-567 | CLAYTON | 6529 | 2001-07-17 | Yes |
| 925-568 | SUNOL | 7145 | — | Yes |
| 925-570 | DUBLN-SNRM | 6529 | — | Yes |
| 925-571 | BSHP RNCH | 7894 | — | — |
| 925-572 | PLEASANTON | 7894 | — | — |
| 925-573 | PITTSBURG | 7894 | — | — |
| 925-574 | DUBLN-SNRM | 671J | 2001-06-27 | Yes |
| 925-575 | DANVILLE | 5562 | — | Yes |
| 925-577 | DUBLN-SNRM | 6529 | 2001-09-19 | Yes |
| 925-578 | ECONTRCOST | 516J | 2020-11-03 | Yes |
| 925-579 | LIVERMORE | 7229 | 2001-04-24 | Yes |
| 925-580 | PLEASANTON | 6529 | — | Yes |
| 925-582 | DUBLN-SNRM | 649C | 2026-06-26 | Yes |
| 925-583 | LIVERMORE | 671J | — | Yes |
| 925-584 | ANTIOCH | 6529 | — | Yes |
| 925-586 | CONCORD | 6006 | — | — |
| 925-587 | DUBLN-SNRM | 671J | — | Yes |
| 925-588 | WALNUT CRK | 671J | — | Yes |
| 925-590 | BSHP RNCH | 624H | 2022-06-23 | Yes |
| 925-591 | LIVERMORE | 649C | 2026-08-27 | Yes |
| 925-592 | MORAGA | 671J | — | Yes |
| 925-594 | DANVILLE | 5562 | 2001-09-21 | Yes |
| 925-595 | CONCORD | 5562 | 2001-05-18 | Yes |
| 925-596 | PLEASANTON | 6006 | — | Yes |
| 925-597 | PITTSBURG | 6006 | — | Yes |
| 925-598 | PLEASANTON | 9740 | — | — |
| 925-599 | LIVERMORE | 965H | 2021-01-27 | Yes |
| 925-600 | PLEASANTON | 9740 | — | — |
| 925-601 | PSBG WEST | 649C | 2026-09-14 | Yes |
| 925-602 | CONCORD | 9740 | — | — |
| 925-603 | CONCORD | 9740 | — | Yes |
| 925-605 | LIVERMORE | 7379 | — | Yes |
| 925-606 | LIVERMORE | 9740 | — | — |
| 925-607 | ANTIOCH | 649C | 2026-05-21 | Yes |
| 925-608 | MARTINEZ | 8826 | 2001-03-01 | Yes |
| 925-609 | CONCORD | 9740 | — | Yes |
| 925-611 | XXXXXXXXXX | MULT | — | — |
| 925-621 | PLEASANTON | 671J | 2001-04-26 | Yes |
| 925-623 | PLEASANTON | 6529 | — | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.