All assignees
346 prefixes in 737 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 737-300 | AUSTIN | 903C | 2015-03-25 | Yes |
| 737-301 | AUSTIN | 004F | 2021-09-14 | Yes |
| 737-302 | SMITHVILLE | 5562 | 2016-05-19 | Yes |
| 737-303 | SAN MARCOS | 622J | 2021-09-07 | Yes |
| 737-304 | AUSTIN | 624H | — | Yes |
| 737-305 | BUDA | 6534 | 2021-10-05 | Yes |
| 737-306 | HUTTO | 6534 | 2021-10-18 | Yes |
| 737-307 | BERTRAM | 903C | 2020-12-28 | Yes |
| 737-308 | AUSTIN | 6506 | 2021-10-22 | Yes |
| 737-309 | AUSTIN | 475J | 2021-11-01 | Yes |
| 737-310 | WIMBERLEY | 321J | 2021-11-04 | Yes |
| 737-311 | XXXXXXXXXX | MULT | — | — |
| 737-312 | KYLE | 903C | 2021-11-02 | Yes |
| 737-313 | AUSTIN | 490J | 2021-12-29 | Yes |
| 737-314 | GEORGETOWN | 6506 | 2022-01-26 | Yes |
| 737-315 | SAN MARCOS | 490J | 2022-01-27 | Yes |
| 737-316 | WIMBERLEY | 903C | 2023-07-28 | Yes |
| 737-317 | DRIPPNGSPG | 903C | 2020-12-28 | Yes |
| 737-318 | BASTROP | 6529 | 2022-02-02 | Yes |
| 737-319 | AUSTIN | 7138 | 2022-02-04 | Yes |
| 737-320 | AUSTIN | 829J | 2022-02-28 | Yes |
| 737-321 | ELGIN | 6529 | 2022-03-01 | Yes |
| 737-322 | ADAMSVILLE | 004F | — | Yes |
| 737-323 | LEANDER | 6529 | 2022-05-27 | Yes |
| 737-324 | LEANDER | 6529 | 2022-05-27 | Yes |
| 737-325 | AUSTIN | 903C | 2023-09-13 | Yes |
| 737-326 | AUSTIN | 6529 | 2022-06-28 | Yes |
| 737-327 | HUTTO | 903C | 2020-12-28 | Yes |
| 737-328 | AUSTIN | 6529 | 2022-06-28 | Yes |
| 737-329 | AUSTIN | 6506 | 2022-07-28 | Yes |
| 737-330 | AUSTIN | 6534 | 2022-08-16 | Yes |
| 737-331 | DALE/LTNSP | 004F | 2022-09-02 | Yes |
| 737-332 | BURNET | 903C | 2020-10-28 | Yes |
| 737-333 | AUSTIN | 319D | 2013-03-01 | Yes |
| 737-334 | AUSTIN | 004F | 2022-09-23 | Yes |
| 737-335 | SAN MARCOS | 6529 | 2022-09-27 | Yes |
| 737-336 | AUSTIN | 965H | 2020-08-18 | Yes |
| 737-337 | FENTRESS | 903C | — | Yes |
| 737-338 | ELGIN | 903C | 2020-11-25 | Yes |
| 737-339 | TAYLOR | 004F | 2022-09-28 | Yes |
| 737-340 | GEORGETOWN | 6529 | 2022-10-03 | Yes |
| 737-341 | AUSTIN | 6529 | 2022-10-06 | Yes |
| 737-342 | AUSTIN | 6529 | 2022-10-06 | Yes |
| 737-343 | AUSTIN | 6506 | 2022-10-12 | Yes |
| 737-344 | SAN MARCOS | 903C | 2020-10-28 | Yes |
| 737-345 | GRANGER | 965H | 2020-07-02 | Yes |
| 737-346 | AUSTIN | 7551 | 2013-07-23 | Yes |
| 737-347 | BASTROP | 612K | 2022-10-14 | Yes |
| 737-348 | BASTROP | 965H | 2019-12-30 | Yes |
| 737-349 | GEORGETOWN | 6506 | 2022-10-17 | Yes |
| 737-350 | BASTROP | 732J | 2022-11-15 | Yes |
| 737-351 | AUSTIN | 6534 | 2022-11-15 | Yes |
| 737-352 | BASTROP | 6506 | 2022-11-15 | Yes |
| 737-353 | BUDA | 145J | — | Yes |
| 737-354 | AUSTIN | 732J | 2023-02-16 | Yes |
| 737-355 | LOCKHART | 004F | 2023-01-25 | Yes |
| 737-356 | GEORGETOWN | 965H | 2019-05-21 | Yes |
| 737-357 | LOCKHART | 624H | 2021-05-28 | Yes |
| 737-358 | AUSTIN | 318J | 2023-02-28 | Yes |
| 737-359 | AUSTIN | 436J | 2023-05-05 | Yes |
| 737-360 | JARRELL | 490J | 2023-04-03 | Yes |
| 737-361 | TAYLOR | 903C | 2023-09-29 | Yes |
| 737-362 | MARTINDALE | 6534 | 2023-11-02 | Yes |
| 737-363 | AUSTIN | 6529 | 2023-11-07 | Yes |
| 737-364 | SANGABRIEL | 598J | 2024-10-07 | Yes |
| 737-365 | BURNET | 197D | 2023-11-22 | Yes |
| 737-366 | MILANO | 903C | 2020-11-16 | Yes |
| 737-367 | AUSTIN | 903C | 2023-12-12 | Yes |
| 737-368 | AUSTIN | 6534 | 2023-12-12 | Yes |
| 737-369 | ROCKDALE | 939H | 2023-12-20 | Yes |
| 737-370 | AUSTIN | 939H | 2023-12-20 | Yes |
| 737-371 | GEORGETOWN | 939H | 2023-12-20 | Yes |
| 737-372 | BUCHANNDAM | 903C | — | Yes |
| 737-373 | SAN MARCOS | 965H | 2019-05-21 | Yes |
| 737-374 | KYLE | 939H | 2023-12-21 | Yes |
| 737-375 | ROCKDALE | 624H | 2021-05-28 | Yes |
| 737-376 | AUSTIN | 6506 | 2024-02-15 | Yes |
| 737-377 | AUSTIN | 965H | 2020-06-18 | Yes |
| 737-378 | KYLE | 516J | 2022-01-26 | Yes |
| 737-379 | LEANDER | 903C | 2024-03-12 | Yes |
| 737-380 | LAMPASAS | 612K | 2024-03-18 | Yes |
| 737-381 | AUSTIN | 903C | 2024-03-18 | Yes |
| 737-382 | AUSTIN | 6534 | 2024-03-21 | Yes |
| 737-383 | GEORGETOWN | 903C | 2024-04-02 | Yes |
| 737-384 | AUSTIN | 490J | 2024-04-03 | Yes |
| 737-385 | ELGIN | 903C | 2024-04-10 | Yes |
| 737-386 | LAMPASAS | 965H | 2021-10-26 | Yes |
| 737-387 | SAN MARCOS | 903C | 2023-02-17 | Yes |
| 737-388 | KYLE | 903C | 2024-04-10 | Yes |
| 737-389 | AUSTIN | 6506 | 2024-05-23 | Yes |
| 737-390 | BASTROP | 903C | 2024-05-29 | Yes |
| 737-391 | HUTTO | 903C | 2024-06-06 | Yes |
| 737-392 | SAN MARCOS | 506J | 2024-06-10 | Yes |
| 737-393 | AUSTIN | 6534 | 2024-06-21 | Yes |
| 737-394 | AUSTIN | 004F | 2024-07-10 | Yes |
| 737-395 | AUSTIN | 6534 | 2024-08-28 | Yes |
| 737-396 | AUSTIN | 598J | 2024-08-30 | Yes |
| 737-397 | AUSTIN | 6506 | 2024-09-24 | Yes |
| 737-398 | AUSTIN | 6529 | 2024-10-02 | Yes |
| 737-399 | AUSTIN | 6529 | 2024-10-14 | 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.