All assignees
475 prefixes in 424 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 424-500 | SNMN MRVS | 649C | — | Yes |
| 424-501 | CULVERCITY | 649C | 2017-02-17 | Yes |
| 424-502 | EL SEGUNDO | 981E | 2019-02-05 | Yes |
| 424-503 | INGLEWOOD | 6010 | 2023-10-26 | Yes |
| 424-504 | CMTN CMTN | 6010 | 2023-12-05 | Yes |
| 424-505 | SAN PEDRO | 6010 | 2024-01-25 | Yes |
| 424-506 | REDONDO | 649C | 2024-01-26 | Yes |
| 424-507 | CMTN CMTN | 649C | 2024-01-26 | Yes |
| 424-508 | SNMN SNMN | 6006 | 2024-01-29 | Yes |
| 424-509 | INGLEWOOD | 649C | 2024-02-29 | Yes |
| 424-510 | CMTN CMTN | 6529 | 2024-05-01 | Yes |
| 424-511 | XXXXXXXXXX | MULT | — | — |
| 424-512 | BEVERLYHLS | 829J | 2017-02-17 | Yes |
| 424-513 | CMTN CMTN | 6529 | 2024-05-31 | Yes |
| 424-514 | W ANGELES | 6529 | 2024-07-30 | Yes |
| 424-515 | INGLEWOOD | 981E | 2024-08-16 | Yes |
| 424-516 | LOMITA | 6529 | 2024-09-09 | Yes |
| 424-517 | SAN PEDRO | 981E | 2024-09-09 | Yes |
| 424-518 | W ANGELES | 981E | 2024-09-19 | Yes |
| 424-519 | SNMN SNMN | 981E | 2024-09-20 | Yes |
| 424-520 | CMTN CMTN | 6529 | 2024-11-08 | Yes |
| 424-521 | CMTN CMTN | 6529 | 2015-04-13 | Yes |
| 424-522 | BEVERLYHLS | 8826 | 2015-07-29 | Yes |
| 424-523 | CULVERCITY | 6529 | 2015-04-13 | Yes |
| 424-524 | MALIBU | 624H | 2021-01-28 | Yes |
| 424-525 | SNMN MRVS | 624H | 2022-07-18 | Yes |
| 424-526 | SNMN MRVS | 8826 | 2015-06-26 | Yes |
| 424-527 | BEVERLYHLS | 6529 | 2015-07-02 | Yes |
| 424-528 | CMTN GRDN | 7139 | 2017-03-17 | Yes |
| 424-529 | CMTN CMTN | 649C | — | Yes |
| 424-530 | CMTN CMTN | 6010 | 2024-11-12 | Yes |
| 424-531 | CMTN GRDN | 899D | 2015-04-14 | Yes |
| 424-532 | CULVERCITY | 981E | 2015-06-04 | Yes |
| 424-533 | SAN PEDRO | 6010 | 2015-12-14 | Yes |
| 424-534 | SAN PEDRO | 6010 | 2024-11-25 | Yes |
| 424-535 | W ANGELES | 6529 | 2015-04-16 | Yes |
| 424-536 | SAN PEDRO | 6006 | 2015-06-18 | Yes |
| 424-537 | SNMN MRVS | 6529 | 2016-08-31 | Yes |
| 424-538 | SNMN SNMN | 7139 | 2017-01-23 | Yes |
| 424-539 | CMTN GRDN | 6010 | 2024-12-03 | Yes |
| 424-540 | SAN PEDRO | 7139 | 2025-01-03 | Yes |
| 424-541 | INGLEWOOD | 516C | 2016-11-01 | Yes |
| 424-542 | BEVERLYHLS | 373F | — | Yes |
| 424-543 | CULVERCITY | 8826 | — | Yes |
| 424-544 | EL SEGUNDO | 965H | 2022-01-21 | Yes |
| 424-545 | SNMN SNMN | 6010 | 2025-01-06 | Yes |
| 424-546 | TORRANCE | 624H | 2025-01-27 | Yes |
| 424-547 | INGLEWOOD | 6529 | 2024-05-10 | Yes |
| 424-548 | MALIBU | 649C | 2025-03-11 | Yes |
| 424-549 | CULVERCITY | 649C | 2025-03-13 | Yes |
| 424-550 | BEVERLYHLS | 649C | 2025-03-13 | Yes |
| 424-551 | CMTN GRDN | 649C | — | Yes |
| 424-552 | SAN PEDRO | 649C | — | Yes |
| 424-553 | BEVERLYHLS | 6010 | 2025-03-14 | Yes |
| 424-554 | W ANGELES | 6010 | 2025-04-03 | Yes |
| 424-555 | DIR ASST | MULT | — | — |
| 424-556 | SNMN SNMN | 6529 | 2025-06-05 | Yes |
| 424-557 | EL SEGUNDO | 6006 | 2025-07-28 | Yes |
| 424-558 | TORRANCE | 6010 | 2006-03-16 | Yes |
| 424-559 | W ANGELES | 7240 | 2018-01-12 | Yes |
| 424-560 | CMTN GRDN | 649C | 2025-09-03 | Yes |
| 424-561 | REDONDO | 649C | 2025-10-09 | Yes |
| 424-562 | SNMN MRVS | 649C | 2025-10-09 | Yes |
| 424-563 | HAWTHORNE | 649C | 2026-01-30 | Yes |
| 424-564 | LOMITA | 649C | 2026-03-11 | Yes |
| 424-565 | TORRANCE | 7139 | 2023-06-30 | Yes |
| 424-566 | BEVERLYHLS | 965H | 2021-04-01 | Yes |
| 424-567 | HAWTHORNE | 649C | — | Yes |
| 424-568 | INGLEWOOD | 829J | 2006-09-21 | Yes |
| 424-569 | SNMN SNMN | 649C | 2026-05-21 | Yes |
| 424-570 | SAN PEDRO | 8826 | 2009-12-16 | Yes |
| 424-571 | TORRANCE | 899D | 2009-12-15 | Yes |
| 424-572 | REDONDO | 6006 | 2026-05-26 | Yes |
| 424-573 | BEVERLYHLS | 6006 | 2026-06-12 | Yes |
| 424-574 | SNMN MRVS | 649C | 2026-06-26 | Yes |
| 424-575 | CMTN GRDN | 649C | 2026-08-11 | Yes |
| 424-576 | BEVERLYHLS | 6010 | 2026-08-14 | Yes |
| 424-577 | INGLEWOOD | 965H | 2020-05-28 | Yes |
| 424-578 | INGLEWOOD | 649C | 2026-08-19 | Yes |
| 424-579 | REDONDO | 649C | 2026-08-19 | Yes |
| 424-580 | SAN PEDRO | 649C | 2026-08-19 | Yes |
| 424-581 | SNMN SNMN | 6010 | 2015-12-14 | Yes |
| 424-582 | W ANGELES | 649C | 2026-08-19 | Yes |
| 424-583 | TORRANCE | 649C | 2026-08-27 | Yes |
| 424-584 | CULVERCITY | 649C | 2026-09-03 | Yes |
| 424-587 | CULVERCITY | 965H | 2021-06-17 | Yes |
| 424-588 | HAWTHORNE | 965H | 2020-07-02 | Yes |
| 424-599 | BEVERLYHLS | 965H | 2021-04-01 | Yes |
| 424-600 | BEVERLYHLS | 649C | — | Yes |
| 424-603 | CULVERCITY | 516C | 2006-06-19 | Yes |
| 424-610 | SNMN SNMN | 7240 | 2014-06-24 | Yes |
| 424-611 | XXXXXXXXXX | MULT | — | — |
| 424-622 | CMTN CMTN | 965H | 2022-05-27 | Yes |
| 424-624 | SNMN MRVS | 649C | 2024-06-03 | Yes |
| 424-625 | SNMN MRVS | 8826 | 2008-05-28 | Yes |
| 424-626 | W ANGELES | 624H | 2022-07-18 | Yes |
| 424-630 | REDONDO | 624H | 2024-11-07 | Yes |
| 424-634 | REDONDO | 8826 | 2006-05-01 | Yes |
| 424-640 | W ANGELES | 624H | 2024-11-07 | Yes |
| 424-644 | MALIBU | 792K | 2006-04-26 | 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.