All assignees
525 prefixes in 253 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 253-401 | TACOMA | 5812 | 2024-01-02 | Yes |
| 253-402 | AUBURN | 6529 | 2022-10-03 | Yes |
| 253-403 | TACOMA | 9638 | — | — |
| 253-404 | TACOMA | 9638 | — | — |
| 253-405 | TACOMA | 6529 | — | Yes |
| 253-406 | GRAHAM | 6529 | 2024-01-12 | Yes |
| 253-407 | AUBURN | 6529 | 2024-02-22 | Yes |
| 253-408 | PUYALLUP | 6529 | 2024-03-01 | Yes |
| 253-409 | AUBURN | 006F | 2016-06-29 | Yes |
| 253-410 | AUBURN | 5812 | 2024-03-29 | Yes |
| 253-411 | XXXXXXXXXX | MULT | — | — |
| 253-412 | TACOMA | 197D | 2024-05-03 | Yes |
| 253-413 | AUBURN | 6529 | 2024-05-31 | Yes |
| 253-414 | TACOMA | 7229 | — | Yes |
| 253-415 | TACOMA | 6630 | — | — |
| 253-416 | TACOMA | 6630 | — | — |
| 253-417 | AUBURN | 6529 | 2024-10-11 | Yes |
| 253-418 | PUYALLUP | 6529 | 2024-10-11 | Yes |
| 253-419 | KENT | 6010 | 2024-10-15 | Yes |
| 253-420 | AUBURN | 6010 | 2024-11-26 | Yes |
| 253-421 | AUBURN | 6529 | 2025-03-07 | Yes |
| 253-422 | AUBURN | 6529 | 2025-06-02 | Yes |
| 253-423 | TACOMA | 483E | — | — |
| 253-424 | AUBURN | 6529 | 2025-06-20 | Yes |
| 253-425 | — | — | ||
| 253-426 | TACOMA | 9638 | — | Yes |
| 253-427 | TACOMA | 6010 | 2025-07-14 | Yes |
| 253-428 | TACOMA | 9638 | — | — |
| 253-429 | AUBURN | 7421 | 2025-08-21 | Yes |
| 253-430 | GIG HARBOR | 6010 | 2025-09-05 | Yes |
| 253-431 | TACOMAWVLY | 6529 | — | Yes |
| 253-432 | GIG HARBOR | 6010 | 2010-01-12 | Yes |
| 253-433 | TACOMA | 6529 | 2016-01-21 | Yes |
| 253-434 | PUYALLUP | 483E | 2022-08-30 | Yes |
| 253-435 | PUYALLUP | 9638 | — | — |
| 253-436 | AUBURN | 6529 | 2025-11-07 | Yes |
| 253-437 | KENT | 9638 | — | — |
| 253-439 | TACOMA | 7274 | — | Yes |
| 253-440 | TACOMA | 6010 | 2025-12-05 | Yes |
| 253-441 | TACOMA | 7173 | 2001-08-21 | Yes |
| 253-442 | TACOMA | 6121 | 2012-01-09 | Yes |
| 253-443 | AUBURN | 6529 | 2026-01-20 | Yes |
| 253-444 | TACOMA | 6121 | — | Yes |
| 253-445 | PUYALLUP | 9638 | — | — |
| 253-446 | PUYALLUP | 9638 | — | Yes |
| 253-447 | SUMNER | 483E | 2001-09-27 | Yes |
| 253-448 | TACOMA | 6010 | 2011-08-02 | Yes |
| 253-449 | DES MOINES | 6121 | — | Yes |
| 253-450 | TACOMAWVLY | 6010 | 2026-03-20 | Yes |
| 253-452 | KENT | 483E | 2023-01-10 | Yes |
| 253-453 | TACOMAWVLY | 483E | 2022-09-01 | Yes |
| 253-455 | AUBURN | 5812 | 2014-09-18 | Yes |
| 253-457 | AUBURN | 5812 | 2015-06-15 | Yes |
| 253-458 | KENT | 6121 | — | Yes |
| 253-459 | TACOMA | 9638 | — | Yes |
| 253-460 | TACOMA | 9638 | — | — |
| 253-461 | TACOMAWVLY | 483E | — | — |
| 253-465 | ROY | 7146 | — | Yes |
| 253-466 | PUYALLUP | 6121 | — | Yes |
| 253-468 | TACOMA | 6529 | — | Yes |
| 253-470 | SUMNER | 829J | 2001-10-23 | Yes |
| 253-471 | TACOMA | 9638 | — | — |
| 253-472 | TACOMA | 9638 | — | — |
| 253-473 | TACOMA | 9638 | — | — |
| 253-474 | TACOMA | 9638 | — | — |
| 253-475 | TACOMA | 9638 | — | — |
| 253-476 | TACOMA | 9638 | — | — |
| 253-477 | TACOMA | 9638 | — | Yes |
| 253-478 | KENT | 7455 | — | Yes |
| 253-479 | KENT | 7229 | — | — |
| 253-480 | KENT | 7173 | — | Yes |
| 253-484 | TACOMA | 483E | — | — |
| 253-486 | AUBURN | 6529 | — | Yes |
| 253-487 | KENT | 9638 | — | Yes |
| 253-495 | TACOMA | 6010 | 2004-10-29 | Yes |
| 253-498 | TACOMA | 483E | — | — |
| 253-499 | KENT | 6121 | — | Yes |
| 253-500 | TACOMAWVLY | 965H | 2021-08-19 | Yes |
| 253-501 | SUMNER | 6121 | — | Yes |
| 253-502 | TACOMA | 9638 | — | — |
| 253-503 | TACOMA | 7146 | — | Yes |
| 253-507 | TACOMA | 6529 | 2006-06-15 | Yes |
| 253-508 | AUBURN | 7146 | — | Yes |
| 253-509 | GIG HARBOR | 318J | — | Yes |
| 253-511 | XXXXXXXXXX | MULT | — | — |
| 253-512 | TACOMA | 9638 | — | — |
| 253-514 | GIG HARBOR | 5812 | — | Yes |
| 253-517 | TACOMAWVLY | 7173 | 2001-11-06 | Yes |
| 253-518 | KENT | 7229 | — | Yes |
| 253-520 | KENT | 9638 | — | — |
| 253-523 | TACOMAWVLY | 483E | 2020-10-22 | Yes |
| 253-525 | GIG HARBOR | 7229 | 2018-04-06 | Yes |
| 253-527 | TACOMA | 6529 | 2018-10-23 | Yes |
| 253-528 | DES MOINES | 9638 | — | Yes |
| 253-529 | DES MOINES | 9638 | — | — |
| 253-530 | GIG HARBOR | 2408 | — | — |
| 253-531 | TACOMA | 9638 | — | — |
| 253-532 | TACOMA | 732J | — | Yes |
| 253-533 | TACOMA | 483E | 2015-05-12 | Yes |
| 253-534 | TACOMA | 9638 | — | 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.