All assignees
542 prefixes in 251 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 251-300 | MOBILE | 947G | 2006-05-08 | Yes |
| 251-301 | MOBILE | 947G | 2012-11-09 | Yes |
| 251-302 | MONROEVL | 6804 | — | Yes |
| 251-303 | MOBILE | 551G | 2013-02-06 | Yes |
| 251-304 | MOBILE | 9419 | — | Yes |
| 251-305 | MOBILE | 318J | 2019-06-04 | Yes |
| 251-306 | IRNGTNSTEL | 773F | 2010-05-20 | Yes |
| 251-307 | MOBILE | 9736 | 2013-03-07 | Yes |
| 251-308 | MOBILE | 508J | 2014-02-10 | Yes |
| 251-309 | BAYOUBATRE | 8271 | 2015-10-29 | Yes |
| 251-310 | BELLEFONTN | 7421 | 2019-07-08 | Yes |
| 251-311 | XXXXXXXXXX | MULT | — | — |
| 251-312 | REPTON | 773F | 2016-12-07 | Yes |
| 251-313 | DAUPHIN IS | 604E | 2018-08-29 | Yes |
| 251-314 | BREWTON | 773F | 2010-05-04 | Yes |
| 251-315 | EVERGREEN | 073H | — | Yes |
| 251-316 | MOBILE | 9419 | — | Yes |
| 251-317 | CITRONELLE | 5255 | 2008-05-05 | Yes |
| 251-318 | MOBILE | 073H | 2019-11-19 | Yes |
| 251-319 | MOBILE | 807C | 2020-03-31 | Yes |
| 251-320 | JACKSON | 6214 | 2016-09-21 | Yes |
| 251-321 | ATMORE | 6916 | 2007-09-18 | Yes |
| 251-322 | ATMORE | 773F | 2006-05-11 | Yes |
| 251-323 | MOBILE | 6214 | 2020-04-27 | Yes |
| 251-324 | FOLEY | 773F | 2007-02-02 | Yes |
| 251-325 | BAYMINETTE | 6214 | 2020-05-28 | Yes |
| 251-326 | MOBILE | 5255 | 2020-06-03 | Yes |
| 251-327 | MOBILE | 6804 | — | Yes |
| 251-328 | MOBILE | 425J | 2020-07-22 | Yes |
| 251-329 | MOBILE | 6214 | 2020-08-26 | Yes |
| 251-330 | MOBILE | 9419 | — | Yes |
| 251-331 | MOBILE | 6744 | — | — |
| 251-332 | MOBILE | 6214 | 2020-11-23 | Yes |
| 251-333 | MOBILE | 604E | 2014-12-24 | Yes |
| 251-334 | URIAH | 604E | 2023-03-21 | Yes |
| 251-335 | MELVIN | 478J | 2020-09-11 | Yes |
| 251-336 | MONROEVL | 965H | 2020-06-11 | Yes |
| 251-337 | REPTON | 604E | 2021-01-06 | Yes |
| 251-338 | MOBILE | 829J | — | Yes |
| 251-339 | GOSPORT | 604E | 2021-01-25 | Yes |
| 251-340 | MOBILE | 9419 | — | Yes |
| 251-341 | MOBILE | 9419 | — | Yes |
| 251-342 | MOBILE | 9419 | — | — |
| 251-343 | MOBILE | 9419 | — | — |
| 251-344 | MOBILE | 9419 | — | — |
| 251-345 | MOBILE | 9419 | — | Yes |
| 251-346 | EVERGREEN | 965H | 2020-08-05 | Yes |
| 251-347 | URIAH | 604E | 2021-01-06 | Yes |
| 251-348 | MOBILE | 516C | 2009-05-08 | Yes |
| 251-349 | MOBILE | 6804 | 2021-03-05 | Yes |
| 251-350 | BAYMINETTE | 604E | 2021-01-22 | Yes |
| 251-351 | BEATRICE | 604E | 2018-09-19 | Yes |
| 251-352 | MOBILE | 6630 | — | — |
| 251-353 | PETERMAN | 073H | 2021-03-05 | Yes |
| 251-354 | GROVE HILL | 6804 | 2021-05-05 | Yes |
| 251-355 | MOBILE | 604E | 2017-08-23 | Yes |
| 251-356 | FINCHBURG | 965H | 2019-12-02 | Yes |
| 251-357 | HUXFORD | 773F | — | Yes |
| 251-358 | MOBILE | 6214 | 2021-06-23 | Yes |
| 251-359 | ATMORE | 6804 | — | Yes |
| 251-360 | GROVE HILL | 0284 | — | Yes |
| 251-361 | MOBILE | 5255 | 2021-08-04 | Yes |
| 251-362 | MONROEVL | 6804 | — | Yes |
| 251-363 | BREWTON | 6214 | 2002-09-10 | — |
| 251-364 | JACKSON | 624H | 2021-09-01 | Yes |
| 251-365 | CITRONELLE | 624H | 2021-09-01 | Yes |
| 251-366 | MOBILE | 6581 | 2002-06-24 | — |
| 251-367 | MOBILE | 6581 | — | — |
| 251-368 | ATMORE | 4464 | — | — |
| 251-369 | EVERGREEN | 7421 | — | Yes |
| 251-370 | MOBILE | 7421 | — | Yes |
| 251-371 | MOBILE | 6630 | — | — |
| 251-372 | BELLEFONTN | 624H | 2021-09-01 | Yes |
| 251-373 | MOBILE | 515J | 2021-09-14 | Yes |
| 251-374 | MOBILE | 624H | 2021-11-16 | Yes |
| 251-375 | MOBILE | 7327 | — | Yes |
| 251-376 | MOBILE | 6214 | 2021-11-18 | Yes |
| 251-377 | MOBILE | 6214 | — | — |
| 251-378 | MOBILE | 829J | — | Yes |
| 251-379 | MOBILE | 5562 | — | Yes |
| 251-380 | MOBILE | 9419 | — | Yes |
| 251-381 | MOBILE | 478J | 2021-12-03 | Yes |
| 251-382 | MOBILE | 5562 | 2002-03-11 | Yes |
| 251-383 | FAIRHOPE | 604E | 2022-03-09 | Yes |
| 251-384 | MOBILE | 5562 | 2022-03-09 | Yes |
| 251-385 | MOBILE | 604E | 2017-02-01 | Yes |
| 251-386 | MOBILE | 829J | 2022-03-28 | Yes |
| 251-387 | JACKSON | 6804 | 2003-02-24 | Yes |
| 251-388 | ATMORE | 604E | 2022-03-09 | Yes |
| 251-389 | CLEAR SPG | 604E | 2022-04-11 | Yes |
| 251-390 | BAYOUBATRE | 604E | 2021-01-25 | Yes |
| 251-391 | MOBILE | 6916 | — | — |
| 251-392 | ATMORE | 5562 | 2022-04-14 | Yes |
| 251-393 | JACKSON | 6916 | 2022-04-18 | Yes |
| 251-394 | MOBILE | 6916 | 2022-05-25 | Yes |
| 251-395 | MOBILE | 6804 | 2022-06-22 | Yes |
| 251-396 | MOBILE | 6916 | 2022-06-27 | Yes |
| 251-397 | DAUPHIN IS | 604E | 2021-01-13 | Yes |
| 251-398 | MOBILE | 6916 | 2022-06-27 | Yes |
| 251-399 | EVERGREEN | 604E | 2022-08-05 | 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.