All assignees
800 prefixes in 408 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 408-500 | MORGANHILL | 6006 | — | Yes |
| 408-501 | SNJS WEST | 9740 | — | Yes |
| 408-502 | LOS GATOS | 6006 | 2011-08-24 | Yes |
| 408-503 | SNJS NORTH | 9740 | — | Yes |
| 408-504 | SNJS WEST | 6010 | — | — |
| 408-505 | SUNNYVALE | 6010 | — | — |
| 408-506 | SNJS WEST | 6010 | — | — |
| 408-507 | SUNNYVALE | 6010 | — | — |
| 408-508 | CAMPBELL | 6010 | 2012-02-16 | Yes |
| 408-509 | SNJS NORTH | 5562 | 2001-09-21 | — |
| 408-510 | SNJS WEST | 6006 | 2007-01-19 | Yes |
| 408-511 | XXXXXXXXXX | MULT | — | — |
| 408-512 | SNJS WEST | 5562 | — | Yes |
| 408-513 | SNJS SOUTH | 671J | — | Yes |
| 408-514 | SNJS NORTH | 671J | — | Yes |
| 408-515 | SNJS NORTH | 6006 | 2001-04-19 | — |
| 408-516 | SNJS WEST | 649C | — | Yes |
| 408-517 | SNJS WEST | 9740 | — | Yes |
| 408-518 | SNJS NORTH | 7145 | — | Yes |
| 408-519 | SNJS NORTH | 7229 | — | — |
| 408-520 | SNJS NORTH | 649C | 2009-11-25 | Yes |
| 408-521 | SNJS WEST | 649C | — | Yes |
| 408-522 | SUNNYVALE | 9740 | — | Yes |
| 408-523 | SUNNYVALE | 9740 | — | — |
| 408-524 | SUNNYVALE | 9740 | — | — |
| 408-525 | SNJS NORTH | 9740 | — | — |
| 408-526 | SNJS NORTH | 9740 | — | — |
| 408-527 | SNJS NORTH | 9740 | — | — |
| 408-528 | SNJS SOUTH | 9740 | — | Yes |
| 408-529 | SNJS WEST | 6006 | — | — |
| 408-530 | SUNNYVALE | 9740 | — | — |
| 408-531 | SNJS SOUTH | 9740 | — | Yes |
| 408-532 | SNJS SOUTH | 9740 | — | Yes |
| 408-533 | SNJS WEST | 7229 | — | Yes |
| 408-534 | SNJS WEST | 9740 | — | Yes |
| 408-535 | SNJS WEST | 9740 | — | — |
| 408-536 | SNJS WEST | 9740 | — | — |
| 408-537 | SNJS WEST | 9740 | — | Yes |
| 408-538 | SNJS WEST | 649C | — | — |
| 408-539 | SNJS WEST | 649C | — | — |
| 408-540 | CAMPBELL | 7229 | — | Yes |
| 408-541 | SUNNYVALE | 9740 | — | Yes |
| 408-542 | SUNNYVALE | 9740 | — | Yes |
| 408-543 | SUNNYVALE | 9740 | — | Yes |
| 408-544 | SNJS NORTH | 9740 | — | Yes |
| 408-545 | SNJS NORTH | 9740 | — | Yes |
| 408-546 | SNJS NORTH | 9740 | — | — |
| 408-547 | SNJS WEST | 649C | — | Yes |
| 408-548 | SUNNYVALE | 9740 | — | Yes |
| 408-549 | SNJS WEST | 649C | — | Yes |
| 408-550 | SNJS WEST | 8826 | — | Yes |
| 408-551 | SNJS WEST | 9740 | — | Yes |
| 408-552 | SNJS WEST | 6630 | — | — |
| 408-553 | SNJS WEST | 9740 | — | — |
| 408-554 | SNJS WEST | 9740 | — | — |
| 408-555 | DIR ASST | MULT | — | — |
| 408-556 | SNJS WEST | 9740 | — | Yes |
| 408-557 | SNJS WEST | 9740 | — | Yes |
| 408-558 | CAMPBELL | 9740 | — | — |
| 408-559 | CAMPBELL | 9740 | — | — |
| 408-560 | LOS GATOS | 981E | 2012-02-16 | Yes |
| 408-561 | SNJS WEST | 5562 | 2001-08-22 | — |
| 408-562 | SNJS WEST | 9740 | — | — |
| 408-563 | SNJS WEST | 9740 | — | — |
| 408-564 | SNJS WEST | 394L | — | Yes |
| 408-565 | SNJS WEST | 9740 | — | Yes |
| 408-566 | SNJS WEST | 9740 | — | — |
| 408-567 | SNJS WEST | 9740 | — | Yes |
| 408-568 | SNJS WEST | 6006 | — | — |
| 408-569 | SNJS WEST | 6529 | 2001-04-25 | Yes |
| 408-570 | SNJS NORTH | 9740 | — | — |
| 408-571 | SNJS NORTH | 9740 | — | Yes |
| 408-572 | SNJS WEST | 7229 | — | — |
| 408-573 | SNJS WEST | 9740 | — | — |
| 408-574 | SNJS SOUTH | 9740 | — | — |
| 408-575 | SNJS WEST | 9740 | — | — |
| 408-576 | SNJS NORTH | 9740 | — | — |
| 408-577 | SNJS NORTH | 9740 | — | Yes |
| 408-578 | SNJS SOUTH | 9740 | — | — |
| 408-579 | SNJS WEST | 671J | — | Yes |
| 408-580 | SNJS SOUTH | 6529 | — | Yes |
| 408-581 | SNJS WEST | 6010 | 2022-08-22 | Yes |
| 408-582 | SNJS NORTH | 7229 | — | Yes |
| 408-583 | CAMPBELL | 7229 | — | Yes |
| 408-584 | SUNNYVALE | 9740 | — | — |
| 408-585 | SUNNYVALE | 671J | — | Yes |
| 408-586 | SNJS NORTH | 9740 | — | — |
| 408-587 | SALINAS | 6967 | — | — |
| 408-588 | SNJS WEST | 9740 | — | Yes |
| 408-589 | SNJS WEST | 9262 | — | — |
| 408-590 | SNJS WEST | 6529 | — | Yes |
| 408-591 | SNJS WEST | 5562 | — | Yes |
| 408-592 | SNJS NORTH | 6529 | — | Yes |
| 408-593 | SUNNYVALE | 6529 | — | Yes |
| 408-594 | SUNNYVALE | 5562 | — | Yes |
| 408-595 | SNJS WEST | 5562 | — | Yes |
| 408-596 | LOS GATOS | 6010 | 2001-11-28 | Yes |
| 408-597 | SNJS NORTH | 7229 | — | Yes |
| 408-598 | SUNNYVALE | 6006 | 2007-04-19 | Yes |
| 408-599 | SNJS SOUTH | 6006 | 2009-09-11 | 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.