All assignees
753 prefixes in 956 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 956-300 | HARLINGEN | 903C | — | — |
| 956-301 | LAREDO | 4290 | 2019-01-10 | Yes |
| 956-302 | ZAPATA | 903C | — | — |
| 956-303 | LOSFRESNOS | 903C | — | — |
| 956-304 | RAYMONDVL | 903C | — | — |
| 956-305 | EDINBURG | 903C | — | — |
| 956-306 | EDCOUCH | 903C | — | — |
| 956-307 | LAREDO | 6534 | 2010-04-29 | Yes |
| 956-308 | LAREDO | 6534 | 2019-07-24 | Yes |
| 956-309 | MCALLEN | 6534 | 2008-06-18 | Yes |
| 956-310 | MCALLEN | 6506 | 2008-03-26 | Yes |
| 956-311 | XXXXXXXXXX | MULT | — | — |
| 956-312 | BROWNSVL | 6534 | — | Yes |
| 956-313 | MCALLEN | 6534 | 2008-10-06 | Yes |
| 956-314 | WESLACO | 6534 | 2008-07-18 | Yes |
| 956-315 | MCALLEN | 4290 | 2022-07-26 | Yes |
| 956-316 | EDINBURG | 9533 | — | — |
| 956-317 | RIGRANDECY | 5562 | 2009-11-16 | Yes |
| 956-318 | EDINBURG | 9533 | — | — |
| 956-319 | LAREDO | 7421 | — | Yes |
| 956-320 | HARLINGEN | 004F | 2008-10-09 | Yes |
| 956-321 | MISSION | 4290 | 2007-01-25 | Yes |
| 956-322 | MCALLEN | 6534 | 2010-06-22 | Yes |
| 956-323 | MISSION | 9533 | 2004-02-24 | Yes |
| 956-324 | LAREDO | 4290 | — | — |
| 956-325 | PHARR | 4290 | 2007-02-21 | Yes |
| 956-326 | LAREDO | 9533 | — | Yes |
| 956-327 | DOLORES | 6534 | 2022-05-06 | Yes |
| 956-328 | MCALLEN | 4290 | 2007-10-19 | Yes |
| 956-329 | EDINBURG | 6114 | 2010-12-29 | Yes |
| 956-330 | EDINBURG | 6534 | — | — |
| 956-331 | MCALLEN | 4290 | 2007-10-19 | Yes |
| 956-332 | WESLACO | 6534 | 2010-03-17 | Yes |
| 956-333 | LAREDO | 6534 | 2006-09-12 | Yes |
| 956-334 | LAREDO | 4290 | — | Yes |
| 956-335 | HARLINGEN | 4290 | — | Yes |
| 956-336 | BROWNSVL | 6534 | 2011-01-31 | Yes |
| 956-337 | LAREDO | 4290 | — | Yes |
| 956-338 | BROWNSVL | 197D | 2018-03-13 | Yes |
| 956-339 | EDINBURG | 004F | 2022-07-28 | Yes |
| 956-340 | MCALLEN | 6534 | 2011-03-25 | Yes |
| 956-341 | HARLINGEN | 4290 | — | Yes |
| 956-342 | MCALLEN | 6506 | — | — |
| 956-343 | HARLINGEN | 4290 | — | Yes |
| 956-344 | LAREDO | 6630 | — | — |
| 956-345 | HARLINGEN | 4290 | — | Yes |
| 956-346 | BROWNSVL | 6506 | — | — |
| 956-347 | LYFORD | 4344 | — | Yes |
| 956-348 | EDINBURG | 319D | 2016-11-14 | Yes |
| 956-349 | LYFORD | 776A | 2011-08-18 | — |
| 956-350 | BROWNSVL | 9533 | — | — |
| 956-351 | WESLACO | 4290 | 2007-02-19 | Yes |
| 956-352 | RIGRANDECY | 6534 | 2013-06-17 | Yes |
| 956-353 | ROMA | 4290 | 2002-01-16 | Yes |
| 956-354 | PHARR | 4290 | 2007-10-19 | Yes |
| 956-355 | WESLACO | 5562 | 2010-12-29 | Yes |
| 956-356 | BROWNSVL | 7148 | 2017-04-18 | Yes |
| 956-357 | HARLINGEN | 6506 | — | — |
| 956-358 | MCALLEN | 6506 | — | — |
| 956-359 | MCALLEN | 7229 | 2018-03-21 | Yes |
| 956-360 | MISSION | 4290 | 2012-11-26 | Yes |
| 956-361 | SAN BENITO | 9533 | — | — |
| 956-362 | MCALLEN | 9533 | 2008-11-05 | Yes |
| 956-363 | WESLACO | 6534 | 2009-05-13 | Yes |
| 956-364 | HARLINGEN | 9533 | — | Yes |
| 956-365 | HARLINGEN | 9533 | — | Yes |
| 956-366 | HARLINGEN | 9533 | — | Yes |
| 956-367 | HARLINGEN | 6534 | — | Yes |
| 956-368 | HARLINGEN | 903C | — | Yes |
| 956-369 | EDINBURG | 6534 | — | — |
| 956-370 | RIGRANDECY | 004F | 2017-01-18 | Yes |
| 956-371 | BROWNSVL | 6534 | — | — |
| 956-372 | BROWNSVL | 516C | 2006-07-19 | Yes |
| 956-373 | WESLACO | 6534 | — | Yes |
| 956-374 | LOSFRESNOS | 6506 | 2017-04-17 | Yes |
| 956-375 | WESLACO | 4290 | 2013-04-25 | Yes |
| 956-376 | WESLACO | 6506 | — | Yes |
| 956-377 | DONNA | 6114 | — | Yes |
| 956-378 | EDINBURG | 793K | 2013-05-28 | Yes |
| 956-379 | MISSION | 6534 | 2007-03-01 | Yes |
| 956-380 | EDINBURG | 9533 | — | — |
| 956-381 | EDINBURG | 9533 | — | Yes |
| 956-382 | BROWNSVL | 4290 | 2017-03-16 | Yes |
| 956-383 | EDINBURG | 9533 | — | — |
| 956-384 | EDINBURG | 9533 | — | — |
| 956-385 | EDINBURG | 9533 | — | — |
| 956-386 | EDINBURG | 9533 | — | Yes |
| 956-387 | EDINBURG | 9533 | — | — |
| 956-388 | EDINBURG | 9533 | — | Yes |
| 956-389 | HARLINGEN | 9533 | — | Yes |
| 956-390 | HARLINGEN | 9533 | — | — |
| 956-391 | MISSION | 6534 | 2007-11-12 | Yes |
| 956-392 | HARLINGEN | 9533 | — | Yes |
| 956-393 | EDINBURG | 9533 | — | Yes |
| 956-394 | LAREDO | 6534 | 2019-09-18 | Yes |
| 956-395 | RIO HONDO | 516C | — | Yes |
| 956-396 | FALCON HTS | 516C | 2011-09-23 | Yes |
| 956-397 | EL SAUZ | 508J | 2016-05-10 | Yes |
| 956-398 | RAYMONDVL | 4344 | 2001-05-24 | Yes |
| 956-399 | SAN BENITO | 9533 | — | — |
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.