All assignees
652 prefixes in 501 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 501-501 | HOTSPRINGS | 348F | 2022-09-27 | Yes |
| 501-502 | LITTLEROCK | 6529 | 2014-08-20 | Yes |
| 501-503 | LITTLEROCK | 196F | 2014-08-07 | Yes |
| 501-504 | CONWAY | 9533 | — | Yes |
| 501-505 | CONWAY | 9533 | — | Yes |
| 501-506 | GRIFFITHVL | 348F | 2018-09-21 | Yes |
| 501-507 | BENTON | 6529 | 2014-03-19 | Yes |
| 501-508 | LITTLEROCK | 5179 | 2014-08-12 | Yes |
| 501-509 | COY | 5179 | 2015-01-13 | Yes |
| 501-510 | LONOKE | 6529 | 2014-12-10 | Yes |
| 501-511 | XXXXXXXXXX | MULT | — | — |
| 501-512 | BRYANTCGVL | 624H | 2021-06-07 | Yes |
| 501-513 | CONWAY | 9533 | — | Yes |
| 501-514 | CONWAY | 6805 | — | Yes |
| 501-515 | LITTLEROCK | 9533 | — | Yes |
| 501-516 | LITTLEROCK | 6805 | — | — |
| 501-517 | LITTLEROCK | 6805 | — | — |
| 501-518 | DAMASCUS | 196F | 2022-01-05 | Yes |
| 501-519 | LITTLEROCK | 6805 | — | — |
| 501-520 | HOTSPRINGS | 9533 | — | Yes |
| 501-521 | HOTSPRINGS | 348F | 2020-10-02 | Yes |
| 501-522 | BENTON | 348F | 2021-07-15 | Yes |
| 501-523 | SCOTT | 7656 | — | Yes |
| 501-524 | VILONIA | 490J | 2022-01-12 | Yes |
| 501-525 | HOTSPRINGS | 9533 | — | — |
| 501-526 | LITTLEROCK | 7656 | — | — |
| 501-527 | LITTLEROCK | 829J | 2022-09-21 | Yes |
| 501-528 | MALVERN | 6805 | 2022-10-03 | Yes |
| 501-529 | LITTLEROCK | 6805 | — | — |
| 501-530 | BALD KNOB | 6805 | 2005-07-05 | Yes |
| 501-531 | HOTSPRINGS | 196F | 2023-01-20 | Yes |
| 501-532 | JESSIEVL | 6805 | 2023-05-16 | Yes |
| 501-533 | JACKSONVL | 1144 | 2001-12-27 | Yes |
| 501-534 | LITTLEROCK | 7264 | — | Yes |
| 501-535 | BALD KNOB | 516J | 2022-02-24 | Yes |
| 501-536 | CONWAY | 6805 | 2023-06-12 | Yes |
| 501-537 | LITTLEROCK | 7656 | — | — |
| 501-538 | HOTSPRINGS | 6534 | — | Yes |
| 501-539 | LITTLEROCK | 6805 | — | — |
| 501-540 | MCRAE | 624H | 2024-02-20 | Yes |
| 501-541 | LITTLEROCK | 6534 | — | — |
| 501-542 | SYVNHLSHWD | 5179 | — | Yes |
| 501-543 | BENTON | 9748 | — | — |
| 501-544 | SHIRLEY | 5179 | 2023-09-28 | Yes |
| 501-545 | HOTSPRINGS | 6534 | 2002-06-14 | Yes |
| 501-546 | FAIRFLD BY | 5179 | 2023-10-09 | Yes |
| 501-547 | HOTSPRINGS | 6805 | — | Yes |
| 501-548 | CONWAY | 9533 | 2001-01-18 | Yes |
| 501-549 | PALARM | 6534 | 2023-10-17 | Yes |
| 501-550 | GREERSFRRY | 5179 | 2002-05-06 | Yes |
| 501-551 | LITTLEROCK | 6534 | — | — |
| 501-552 | LITTLEROCK | 7656 | 2001-11-07 | — |
| 501-553 | LITTLEROCK | 7264 | — | Yes |
| 501-554 | LITTLEROCK | 6534 | — | Yes |
| 501-555 | DIR ASST | MULT | — | — |
| 501-556 | ROSE BUD | 1691 | — | Yes |
| 501-557 | BAUXITE | 9533 | — | Yes |
| 501-558 | LITTLEROCK | 9533 | — | Yes |
| 501-559 | BENTON | 6805 | 2023-12-20 | Yes |
| 501-560 | JACKSONVL | 348F | 2025-02-12 | Yes |
| 501-561 | LITTLEROCK | 475J | 2023-11-06 | Yes |
| 501-562 | LITTLEROCK | 9533 | — | — |
| 501-563 | LITTLEROCK | 6534 | — | — |
| 501-564 | SYVNHLSHWD | 515J | 2024-02-16 | Yes |
| 501-565 | LITTLEROCK | 9533 | — | — |
| 501-566 | JONESMILLS | 9533 | 2001-05-08 | Yes |
| 501-567 | CENTER RDG | 965H | 2020-11-19 | Yes |
| 501-568 | LITTLEROCK | 9533 | — | Yes |
| 501-569 | LITTLEROCK | 9533 | — | — |
| 501-570 | LITTLEROCK | 9533 | — | Yes |
| 501-571 | WYE | 348F | 2023-01-11 | Yes |
| 501-572 | ENOLA | 490J | 2024-02-20 | Yes |
| 501-573 | CABOT | 6534 | 2024-12-30 | Yes |
| 501-574 | BENTON | 5179 | 2001-05-08 | Yes |
| 501-575 | BENTON | 196F | 2015-10-06 | Yes |
| 501-576 | CONWAY | 6534 | 2025-01-13 | Yes |
| 501-577 | LONOKE | 965H | 2020-07-15 | Yes |
| 501-578 | FERNDALE | 348F | 2025-03-13 | Yes |
| 501-579 | SPRINGLAKE | 6534 | 2025-04-16 | Yes |
| 501-580 | LITTLEROCK | 6805 | — | — |
| 501-581 | GREENBRIER | 1691 | — | Yes |
| 501-582 | BENTON | 348F | 2025-11-04 | Yes |
| 501-583 | LITTLEROCK | 700J | 2025-11-17 | Yes |
| 501-584 | LITTLEROCK | 6805 | — | Yes |
| 501-585 | CONWAY | 7656 | 2015-10-01 | Yes |
| 501-586 | CONWAY | 348F | 2025-12-12 | Yes |
| 501-587 | LITTLEROCK | 128L | 2025-12-15 | Yes |
| 501-588 | LITTLEROCK | 5179 | 2002-05-06 | Yes |
| 501-589 | QUITMAN | 1691 | — | Yes |
| 501-590 | LITTLEROCK | 6534 | — | — |
| 501-591 | BEEBE | 6529 | 2025-12-05 | Yes |
| 501-592 | SCOTLAND | 1692 | — | — |
| 501-593 | SEARCY | 5179 | 2002-07-15 | Yes |
| 501-594 | PARON | 9533 | — | Yes |
| 501-595 | BRYANTCGVL | 515J | 2026-06-01 | Yes |
| 501-596 | JACKSONVL | 6534 | — | Yes |
| 501-597 | HOTSPRINGS | 515J | 2026-06-03 | Yes |
| 501-598 | PALARM | 515J | 2026-06-03 | Yes |
| 501-599 | SYVNHLSHWD | 965H | 2020-07-15 | Yes |
| 501-600 | PLEASANTPL | 348F | 2018-09-21 | 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.