All assignees
525 prefixes in 253 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 253-301 | TACOMA | 318J | 2007-01-04 | Yes |
| 253-302 | TACOMA | 5812 | — | Yes |
| 253-303 | GIG HARBOR | 318J | — | Yes |
| 253-304 | TACOMA | 6010 | 2005-10-05 | Yes |
| 253-305 | TACOMA | 9638 | — | — |
| 253-306 | TACOMA | 5812 | — | Yes |
| 253-307 | TACOMA | 5812 | — | — |
| 253-308 | AUBURN | 6529 | 2022-08-12 | Yes |
| 253-309 | TACOMA | 6630 | — | — |
| 253-310 | TACOMA | 7146 | 2001-05-25 | Yes |
| 253-311 | XXXXXXXXXX | MULT | — | — |
| 253-312 | TACOMA | 5812 | — | — |
| 253-313 | GIG HARBOR | 318J | — | Yes |
| 253-314 | TACOMA | 6529 | 2007-03-14 | Yes |
| 253-315 | AUBURN | 6010 | 2001-04-26 | Yes |
| 253-316 | TACOMAWVLY | 6529 | 2020-03-18 | Yes |
| 253-317 | TACOMA | 6529 | 2020-01-14 | Yes |
| 253-318 | TACOMA | 5812 | — | — |
| 253-319 | TACOMA | 006F | 2020-04-20 | Yes |
| 253-320 | TACOMA | 5812 | — | Yes |
| 253-321 | SUMNER | 6121 | — | Yes |
| 253-322 | TACOMA | 483E | — | — |
| 253-323 | TACOMA | 483E | — | — |
| 253-324 | TACOMA | 6529 | 2007-10-05 | Yes |
| 253-325 | TACOMAWVLY | 6010 | 2019-04-17 | Yes |
| 253-326 | AUBURN | 6529 | 2007-10-08 | Yes |
| 253-327 | TACOMA | 6529 | 2008-02-15 | Yes |
| 253-328 | TACOMA | 5812 | 2013-12-18 | Yes |
| 253-329 | AUBURN | 6010 | 2011-07-22 | Yes |
| 253-330 | TACOMA | 6529 | 2006-07-14 | Yes |
| 253-331 | TACOMAWVLY | 5562 | 2017-03-29 | Yes |
| 253-332 | AUBURN | 6529 | 2001-04-16 | — |
| 253-333 | AUBURN | 9638 | — | — |
| 253-334 | AUBURN | 6529 | — | — |
| 253-335 | AUBURN | 6529 | — | — |
| 253-336 | DES MOINES | 6121 | 2002-03-12 | Yes |
| 253-337 | TACOMAWVLY | 5812 | — | Yes |
| 253-338 | AUBURN | 6529 | 2020-05-28 | Yes |
| 253-339 | TACOMAWVLY | 6529 | 2020-07-15 | Yes |
| 253-340 | KENT | 5562 | 2022-03-22 | Yes |
| 253-341 | TACOMA | 5812 | — | Yes |
| 253-342 | TACOMA | 5812 | 2020-10-12 | Yes |
| 253-343 | TACOMA | 7173 | — | Yes |
| 253-344 | TACOMAWVLY | 7173 | — | Yes |
| 253-345 | TACOMAWVLY | 829J | 2001-09-27 | Yes |
| 253-346 | TACOMA | 6529 | 2021-03-18 | Yes |
| 253-347 | AUBURN | 6010 | 2001-08-21 | — |
| 253-348 | TACOMA | 6010 | 2011-03-25 | Yes |
| 253-349 | AUBURN | 6529 | 2022-01-07 | Yes |
| 253-350 | AUBURN | 5812 | — | — |
| 253-351 | AUBURN | 9638 | — | — |
| 253-352 | TACOMA | 483E | 2020-09-22 | Yes |
| 253-353 | TACOMA | 6529 | 2006-06-13 | Yes |
| 253-354 | TACOMA | 7229 | 2022-02-14 | Yes |
| 253-355 | TACOMA | 5812 | 2008-02-22 | Yes |
| 253-356 | TACOMA | 965H | 2021-04-29 | Yes |
| 253-357 | TACOMA | 073H | 2021-06-07 | Yes |
| 253-358 | GIG HARBOR | 5812 | 2010-01-14 | Yes |
| 253-359 | TACOMA | 7455 | — | Yes |
| 253-360 | — | — | ||
| 253-361 | TACOMAWVLY | 6529 | 2020-10-20 | Yes |
| 253-362 | SUMNER | 483E | 2023-01-10 | Yes |
| 253-363 | TACOMA | 5812 | 2009-01-27 | Yes |
| 253-364 | SUMNER | 6010 | 2022-03-25 | Yes |
| 253-365 | TACOMA | 6010 | 2008-07-07 | Yes |
| 253-366 | TACOMA | 483E | 2021-02-02 | Yes |
| 253-367 | GRAHAM | 6010 | 2021-08-31 | Yes |
| 253-368 | AUBURN | 6529 | 2020-10-20 | Yes |
| 253-369 | TACOMA | 483E | — | — |
| 253-370 | TACOMA | 5812 | — | — |
| 253-371 | TACOMA | 7229 | 2013-10-24 | — |
| 253-372 | KENT | 9638 | — | Yes |
| 253-373 | KENT | 9638 | — | Yes |
| 253-374 | AUBURN | 7229 | 2021-09-28 | Yes |
| 253-375 | GRAHAM | 7146 | — | Yes |
| 253-376 | TACOMA | 6529 | — | Yes |
| 253-377 | TACOMA | 6529 | — | Yes |
| 253-378 | AUBURN | 6529 | 2023-01-13 | Yes |
| 253-379 | ROY | 483E | 2023-04-14 | Yes |
| 253-380 | TACOMA | 5812 | — | — |
| 253-381 | TACOMA | 5812 | — | — |
| 253-382 | TACOMA | 9638 | — | Yes |
| 253-383 | TACOMA | 9638 | — | — |
| 253-384 | TACOMA | 490J | 2023-04-25 | Yes |
| 253-385 | GRAHAM | 483E | 2023-01-23 | Yes |
| 253-386 | PUYALLUP | 6529 | 2023-08-31 | Yes |
| 253-387 | PUYALLUP | 483E | — | Yes |
| 253-388 | AUBURN | 5812 | 2023-09-11 | Yes |
| 253-389 | TACOMA | 5812 | — | Yes |
| 253-390 | TACOMA | 483E | — | — |
| 253-391 | AUBURN | 6529 | 2014-01-09 | Yes |
| 253-392 | TACOMAWVLY | 6529 | 2016-01-13 | Yes |
| 253-393 | TACOMA | 6121 | 2019-01-29 | Yes |
| 253-394 | AUBURN | 829J | 2001-09-28 | Yes |
| 253-395 | KENT | 9638 | — | — |
| 253-396 | TACOMA | 9638 | — | — |
| 253-397 | AUBURN | 5812 | — | Yes |
| 253-398 | KENT | 7274 | — | Yes |
| 253-399 | TACOMA | 483E | — | — |
| 253-400 | GIG HARBOR | 965H | 2021-04-29 | 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.