All assignees
797 prefixes in 559 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 559-500 | FRESNO | 649C | — | Yes |
| 559-501 | VISALIA | 9748 | — | — |
| 559-502 | VISALIA | 6010 | 2023-08-04 | Yes |
| 559-503 | KINGSBURG | 9748 | — | — |
| 559-504 | COALINGA | 9748 | — | — |
| 559-505 | MADERA | 6006 | 2023-08-08 | Yes |
| 559-506 | HANFORD | 9748 | — | — |
| 559-507 | MADERA | 6010 | 2020-04-07 | Yes |
| 559-508 | FRESNO | 624H | 2023-08-17 | Yes |
| 559-509 | TULARE | 6010 | 2020-03-25 | Yes |
| 559-510 | TULARE | 939H | — | Yes |
| 559-511 | XXXXXXXXXX | MULT | — | — |
| 559-512 | FRESNO | 981E | 2009-04-28 | Yes |
| 559-513 | FRESNO | 6010 | 2009-04-28 | Yes |
| 559-514 | MADERA | 6010 | 2009-04-28 | Yes |
| 559-515 | FRESNO | 6010 | 2010-03-19 | Yes |
| 559-516 | VISALIA | 6010 | 2020-05-28 | Yes |
| 559-517 | MADERA | 671J | 2009-05-21 | Yes |
| 559-518 | VISALIA | 6010 | 2020-10-14 | Yes |
| 559-519 | FRESNO | 649C | — | Yes |
| 559-520 | BURREL | 649C | — | Yes |
| 559-521 | DEL REY | 649C | — | Yes |
| 559-522 | LEMON COVE | 8826 | — | Yes |
| 559-523 | PIXLEY | 649C | — | Yes |
| 559-524 | SANGER | 321J | — | Yes |
| 559-525 | SANJOAQUIN | 373F | — | Yes |
| 559-526 | STRATFORD | 8826 | — | Yes |
| 559-527 | TERRABELLA | 8826 | — | Yes |
| 559-528 | DINUBA | 9740 | — | Yes |
| 559-529 | TIPTON | 8826 | — | Yes |
| 559-530 | HANFORD | 981E | 2010-04-23 | Yes |
| 559-531 | TIVYVALLEY | 8826 | — | Yes |
| 559-532 | WOODLAKE | 649C | — | Yes |
| 559-533 | CHOWCHILLA | 649C | — | — |
| 559-534 | DUCOR | 2313 | — | — |
| 559-535 | TERRABELLA | 9740 | — | Yes |
| 559-536 | MADERA | 6006 | 2013-08-02 | Yes |
| 559-537 | HANFORD | 671J | 2010-03-08 | Yes |
| 559-538 | FRESNO | 145J | — | Yes |
| 559-539 | SPRINGVL | 9740 | — | Yes |
| 559-540 | FRESNO | 8826 | 2015-06-26 | Yes |
| 559-541 | FRESNO | 5562 | 2015-04-13 | Yes |
| 559-542 | SPRINGVL | 9740 | — | Yes |
| 559-543 | HURON | 7718 | — | Yes |
| 559-544 | PORTERVL | 7145 | 2010-03-12 | Yes |
| 559-545 | CLOVIS | 6529 | 2015-02-03 | Yes |
| 559-546 | SANGER | 252F | 2010-06-04 | Yes |
| 559-547 | FRESNO | 6010 | 2014-03-11 | Yes |
| 559-548 | FRESNO | 6529 | 2015-05-14 | Yes |
| 559-549 | FRESNO | 8826 | — | Yes |
| 559-550 | FRESNO | 649C | 2017-08-22 | Yes |
| 559-551 | REEDLEY | 6010 | 2015-11-13 | Yes |
| 559-552 | FRESNO | 508J | 2020-09-24 | Yes |
| 559-553 | VISALIA | 649C | — | Yes |
| 559-554 | FRESNO | 649C | 2010-11-01 | Yes |
| 559-555 | DIR ASST | MULT | — | — |
| 559-556 | TULARE | 6010 | 2014-03-27 | Yes |
| 559-557 | VISALIA | 6010 | 2020-10-22 | Yes |
| 559-558 | FRESNO | 551G | 2014-06-06 | Yes |
| 559-559 | CHOWCHILLA | 649C | 2025-12-22 | Yes |
| 559-560 | PORTERVL | 649C | — | Yes |
| 559-561 | THREERIVRS | 9740 | — | Yes |
| 559-562 | LINDSAY | 2319 | — | — |
| 559-563 | VISALIA | 6529 | 2015-03-09 | Yes |
| 559-564 | WOODLAKE | 9740 | — | Yes |
| 559-565 | SEQUOIA | 9740 | — | Yes |
| 559-566 | THREERIVRS | 8826 | — | Yes |
| 559-567 | KERMAN | 5562 | — | Yes |
| 559-568 | LINDSAY | 2319 | — | Yes |
| 559-569 | FRESNO | 6010 | 2019-08-26 | Yes |
| 559-570 | FRESNO | 649C | — | Yes |
| 559-571 | VISALIA | 6529 | 2015-06-22 | Yes |
| 559-572 | HANFORD | 6010 | 2001-07-16 | Yes |
| 559-573 | FRESNO | 649C | — | Yes |
| 559-574 | PARLIER | 6006 | 2014-11-11 | Yes |
| 559-575 | CLOVIS | 981E | 2014-04-17 | Yes |
| 559-576 | PORTERVL | 981E | 2021-10-28 | Yes |
| 559-577 | FRESNO | 671J | 2005-03-09 | Yes |
| 559-578 | CLOVIS | 6006 | 2015-05-13 | Yes |
| 559-579 | FRESNO | 6010 | 2005-01-24 | Yes |
| 559-580 | COARSEGOLD | 6010 | 2011-08-18 | Yes |
| 559-581 | FRESNO | 515J | 2020-11-25 | Yes |
| 559-582 | HANFORD | 9740 | — | — |
| 559-583 | HANFORD | 9740 | — | — |
| 559-584 | HANFORD | 9740 | — | — |
| 559-585 | HANFORD | 9740 | — | — |
| 559-586 | LINDSAY | 6010 | — | Yes |
| 559-587 | HANFORD | 9740 | — | Yes |
| 559-588 | ALPAUGH | 8826 | — | Yes |
| 559-589 | HANFORD | 9740 | — | Yes |
| 559-590 | DINUBA | 6010 | — | Yes |
| 559-591 | DINUBA | 9740 | — | — |
| 559-592 | EXETER | 4420 | — | — |
| 559-593 | CLOVIS | 6006 | 2001-03-01 | Yes |
| 559-594 | EXETER | 4420 | — | Yes |
| 559-595 | DINUBA | 9740 | — | Yes |
| 559-596 | DINUBA | 9740 | — | Yes |
| 559-597 | LEMON COVE | 4420 | — | Yes |
| 559-598 | MADERA | 6010 | 2014-06-26 | Yes |
| 559-599 | CLOVIS | 965H | 2020-07-24 | 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.