All assignees
753 prefixes in 956 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 956-500 | RIGRANDECY | 6534 | — | Yes |
| 956-501 | HARLINGEN | 4290 | — | Yes |
| 956-502 | PHARR | 6534 | 2008-07-21 | Yes |
| 956-503 | DONNA | 5562 | 2014-06-16 | Yes |
| 956-504 | BROWNSVL | 9533 | — | — |
| 956-505 | BROWNSVL | 6534 | 2020-02-11 | Yes |
| 956-506 | HARLINGEN | 073H | 2019-12-02 | Yes |
| 956-507 | HARLINGEN | 319D | 2005-04-05 | Yes |
| 956-508 | LAREDO | 6534 | 2007-11-07 | Yes |
| 956-509 | BROWNSVL | 6534 | 2013-06-17 | Yes |
| 956-510 | PHARR | 5562 | 2014-09-24 | Yes |
| 956-511 | XXXXXXXXXX | MULT | — | — |
| 956-512 | LOSFRESNOS | 6506 | 2026-05-21 | Yes |
| 956-513 | EDINBURG | 004F | 2014-09-24 | Yes |
| 956-514 | MERCEDES | 9533 | — | — |
| 956-515 | MCALLEN | 6534 | 2008-07-21 | Yes |
| 956-516 | LAREDO | 6534 | 2014-08-22 | Yes |
| 956-517 | BROWNSVL | 4290 | 2007-04-03 | Yes |
| 956-518 | BROWNSVL | 4290 | 2013-07-22 | Yes |
| 956-519 | MISSION | 9533 | — | — |
| 956-520 | WESLACO | 4290 | 2014-10-07 | Yes |
| 956-521 | BROWNSVL | 4290 | 2007-04-16 | Yes |
| 956-522 | MCALLEN | 4290 | 2002-04-08 | Yes |
| 956-523 | LAREDO | 9533 | 2001-03-01 | Yes |
| 956-524 | PORTISABEL | 5562 | 2007-05-08 | Yes |
| 956-525 | BROWNSVL | 6506 | 2004-12-06 | Yes |
| 956-526 | DOLORES | 6534 | 2020-02-11 | Yes |
| 956-527 | EDCOUCH | 004F | 2019-04-30 | Yes |
| 956-528 | LAREDO | 6534 | 2020-03-03 | Yes |
| 956-529 | MISSION | 6534 | 2011-03-14 | Yes |
| 956-530 | MCALLEN | 4290 | 2014-12-12 | Yes |
| 956-531 | LAREDO | 829J | 2020-04-06 | Yes |
| 956-532 | WESLACO | 6506 | — | Yes |
| 956-533 | MCALLEN | 4290 | 2001-05-01 | — |
| 956-534 | MCALLEN | 4290 | 2001-05-01 | — |
| 956-535 | HARLINGEN | 4290 | — | Yes |
| 956-536 | HARLINGEN | 4290 | 2001-02-02 | — |
| 956-537 | MCALLEN | 4290 | 2007-04-03 | Yes |
| 956-538 | BROWNSVL | 6534 | 2020-05-13 | Yes |
| 956-539 | LAREDO | 197D | 2018-11-15 | Yes |
| 956-540 | MCALLEN | 6506 | 2016-04-20 | Yes |
| 956-541 | BROWNSVL | 9533 | — | — |
| 956-542 | BROWNSVL | 9533 | — | — |
| 956-543 | BROWNSVL | 4290 | 2006-09-13 | Yes |
| 956-544 | BROWNSVL | 9533 | — | — |
| 956-545 | BROWNSVL | 793K | — | Yes |
| 956-546 | BROWNSVL | 9533 | — | — |
| 956-547 | BROWNSVL | 9533 | — | Yes |
| 956-548 | BROWNSVL | 9533 | — | — |
| 956-549 | STILLMAN | 508J | 2016-02-16 | Yes |
| 956-550 | BROWNSVL | 9533 | — | Yes |
| 956-551 | BROWNSVL | 6506 | — | Yes |
| 956-552 | LAREDO | 6506 | 2020-07-21 | Yes |
| 956-553 | HARLINGEN | 624H | — | Yes |
| 956-554 | BROWNSVL | 9533 | — | Yes |
| 956-555 | DIR ASST | MULT | — | — |
| 956-556 | LOSFRESNOS | 6506 | 2020-08-19 | Yes |
| 956-557 | MCCOOK | 508J | 2016-05-10 | Yes |
| 956-558 | MCALLEN | 4290 | 2020-08-28 | Yes |
| 956-559 | BROWNSVL | 6534 | 2014-12-01 | Yes |
| 956-560 | MCALLEN | 6534 | 2007-10-18 | Yes |
| 956-561 | BROWNSVL | 6506 | 2001-05-11 | Yes |
| 956-562 | MCALLEN | 6534 | 2007-10-19 | Yes |
| 956-563 | MCALLEN | 6534 | 2007-10-19 | Yes |
| 956-564 | HARLINGEN | 6506 | 2002-06-24 | Yes |
| 956-565 | MERCEDES | 9533 | — | — |
| 956-566 | MCALLEN | 6506 | 2002-06-24 | — |
| 956-567 | EDCOUCH | 4866 | 2005-05-24 | Yes |
| 956-568 | LAREDO | 793K | — | — |
| 956-569 | MCALLEN | 6534 | 2008-04-29 | Yes |
| 956-570 | MCALLEN | 6534 | 2008-04-29 | Yes |
| 956-571 | HARLINGEN | 4290 | — | Yes |
| 956-572 | BROWNSVL | 6534 | — | Yes |
| 956-573 | RIGRANDECY | 4344 | 2001-05-24 | Yes |
| 956-574 | BROWNSVL | 9533 | — | Yes |
| 956-575 | MISSION | 4290 | 2020-09-01 | Yes |
| 956-576 | BROWNSVL | 4290 | 2020-09-02 | Yes |
| 956-577 | HARLINGEN | 9533 | 2002-02-05 | Yes |
| 956-578 | MCALLEN | 9533 | 2002-02-05 | Yes |
| 956-579 | BROWNSVL | 9533 | 2002-02-05 | Yes |
| 956-580 | MISSION | 9533 | — | — |
| 956-581 | MISSION | 9533 | — | — |
| 956-582 | SANPERLITA | 508J | 2016-05-11 | Yes |
| 956-583 | MISSION | 9533 | — | Yes |
| 956-584 | MISSION | 9533 | — | — |
| 956-585 | MISSION | 9533 | — | — |
| 956-586 | PHARR | 6534 | 2015-08-03 | Yes |
| 956-587 | EDINBURG | 9533 | 2007-03-12 | Yes |
| 956-588 | PHARR | 319D | 2005-04-18 | Yes |
| 956-589 | BROWNSVL | 7148 | 2007-06-04 | Yes |
| 956-590 | BROWNSVL | 6534 | 2010-12-23 | Yes |
| 956-591 | MISSION | 793K | 2020-09-04 | Yes |
| 956-592 | BROWNSVL | 4290 | 2001-03-13 | Yes |
| 956-593 | WESLACO | 6506 | 2020-09-23 | Yes |
| 956-594 | BROWNSVL | 515J | 2020-09-28 | Yes |
| 956-595 | MCALLEN | 6506 | 2020-10-16 | Yes |
| 956-596 | BROWNSVL | 6506 | 2020-10-19 | Yes |
| 956-597 | DONNA | 004F | 2020-10-19 | Yes |
| 956-598 | MISSION | 4290 | 2007-05-17 | Yes |
| 956-599 | MISSION | 6534 | 2010-12-02 | 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.