All assignees
652 prefixes in 501 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 501-601 | MALVERN | 348F | 2018-10-15 | Yes |
| 501-602 | BAUXITE | 9533 | — | Yes |
| 501-603 | LITTLEROCK | 9533 | — | Yes |
| 501-604 | LITTLEROCK | 5179 | — | Yes |
| 501-605 | CABOT | 1144 | — | Yes |
| 501-606 | CABOT | 6529 | — | Yes |
| 501-607 | LITTLEROCK | 6805 | — | — |
| 501-608 | SYVNHLSHWD | 515J | 2026-06-12 | Yes |
| 501-609 | HOTSPRINGS | 9533 | — | — |
| 501-610 | CABOT | 348F | 2026-08-12 | Yes |
| 501-611 | XXXXXXXXXX | MULT | — | — |
| 501-612 | LITTLEROCK | 6534 | — | — |
| 501-613 | LITTLEROCK | 6529 | 2005-10-17 | Yes |
| 501-614 | LITTLEROCK | 9533 | — | Yes |
| 501-615 | LITTLEROCK | 9533 | — | Yes |
| 501-617 | HOTSPRINGS | 6805 | — | — |
| 501-618 | LITTLEROCK | 9533 | — | Yes |
| 501-620 | HOTSPRINGS | 9533 | — | Yes |
| 501-621 | LITTLEROCK | 073H | — | Yes |
| 501-622 | HOTSPRINGS | 9533 | — | — |
| 501-623 | HOTSPRINGS | 9533 | — | — |
| 501-624 | HOTSPRINGS | 9533 | — | — |
| 501-625 | HOTSPRINGS | 9533 | — | Yes |
| 501-626 | LITTLEROCK | 6534 | — | — |
| 501-627 | HOTSPRINGS | 9533 | — | — |
| 501-628 | CABOT | 7656 | — | Yes |
| 501-629 | LITTLEROCK | 321J | — | Yes |
| 501-630 | LITTLEROCK | 7264 | — | Yes |
| 501-631 | LITTLEROCK | 5179 | 2003-07-23 | Yes |
| 501-632 | LITTLEROCK | 5179 | 2003-07-23 | Yes |
| 501-633 | LITTLEROCK | 5179 | 2003-07-23 | Yes |
| 501-634 | LITTLEROCK | 5179 | 2003-07-23 | Yes |
| 501-635 | LITTLEROCK | 5179 | 2003-07-23 | Yes |
| 501-636 | LITTLEROCK | 5179 | 2003-07-23 | Yes |
| 501-637 | LITTLEROCK | 5179 | 2003-07-23 | Yes |
| 501-638 | LITTLEROCK | 5179 | 2003-07-23 | Yes |
| 501-639 | LITTLEROCK | 5179 | 2003-07-23 | Yes |
| 501-640 | LITTLEROCK | 516J | — | Yes |
| 501-641 | LITTLEROCK | 6805 | — | Yes |
| 501-642 | LITTLEROCK | 348F | — | Yes |
| 501-643 | LITTLEROCK | 506J | — | Yes |
| 501-644 | LITTLEROCK | 6534 | — | Yes |
| 501-645 | MORRILTON | 6534 | — | Yes |
| 501-646 | LITTLEROCK | 6534 | — | Yes |
| 501-647 | LITTLEROCK | 6534 | — | Yes |
| 501-648 | LITTLEROCK | 6534 | — | Yes |
| 501-650 | LITTLEROCK | 6534 | 2005-08-16 | Yes |
| 501-651 | HOTSPRINGS | 802C | 2007-06-26 | Yes |
| 501-652 | MORRILTON | 6534 | — | Yes |
| 501-653 | BRYANTCGVL | 9533 | — | Yes |
| 501-654 | MORGANTON | 1691 | — | Yes |
| 501-655 | HOTSPRINGS | 5562 | — | Yes |
| 501-658 | LITTLEROCK | 6534 | — | — |
| 501-660 | LITTLEROCK | 9533 | — | — |
| 501-661 | LITTLEROCK | 9533 | — | Yes |
| 501-662 | PERRY | 1691 | — | Yes |
| 501-663 | LITTLEROCK | 9533 | — | — |
| 501-664 | LITTLEROCK | 9533 | — | — |
| 501-665 | LITTLEROCK | 939H | — | Yes |
| 501-666 | LITTLEROCK | 9533 | — | Yes |
| 501-667 | KENSETT | 965H | 2020-11-19 | Yes |
| 501-669 | CLEVELAND | 9533 | — | Yes |
| 501-671 | LITTLEROCK | 9533 | — | — |
| 501-672 | BENTON | 6534 | — | Yes |
| 501-673 | PINNACLE | 7656 | — | Yes |
| 501-676 | LONOKE | 9533 | — | Yes |
| 501-679 | GREENBRIER | 1691 | — | — |
| 501-680 | LITTLEROCK | 6805 | — | — |
| 501-681 | LITTLEROCK | 6534 | — | — |
| 501-682 | LITTLEROCK | 7656 | — | — |
| 501-683 | LITTLEROCK | 9533 | — | Yes |
| 501-686 | LITTLEROCK | 9533 | — | — |
| 501-687 | LITTLEROCK | 7656 | — | Yes |
| 501-688 | LITTLEROCK | 9533 | — | — |
| 501-690 | LITTLEROCK | 6805 | — | — |
| 501-691 | HEBER SPG | 6534 | — | Yes |
| 501-693 | HOTSPRINGS | 6529 | — | Yes |
| 501-694 | LITTLEROCK | 5179 | — | — |
| 501-697 | CONWAY | 6534 | — | Yes |
| 501-699 | SCOTLAND | 6805 | 2006-08-07 | Yes |
| 501-700 | — | — | ||
| 501-701 | HOTSPRINGS | 9533 | — | Yes |
| 501-703 | LONOKE | 6529 | 2014-01-30 | Yes |
| 501-707 | LITTLEROCK | 7277 | — | Yes |
| 501-708 | LITTLEROCK | 7277 | — | Yes |
| 501-710 | LITTLEROCK | 624H | 2019-09-17 | Yes |
| 501-711 | XXXXXXXXXX | MULT | — | — |
| 501-712 | LITTLEROCK | 6534 | 2011-12-12 | Yes |
| 501-714 | GREENBRIER | 506J | 2024-10-31 | Yes |
| 501-716 | LITTLEROCK | 9533 | — | Yes |
| 501-721 | XXXXXXXXXX | 9533 | — | — |
| 501-722 | BENTON | 7656 | — | Yes |
| 501-723 | SHIRLEY | 1692 | — | — |
| 501-724 | BALD KNOB | 1142 | — | Yes |
| 501-725 | LITTLEROCK | 5179 | — | Yes |
| 501-726 | MCRAE | 1144 | — | — |
| 501-727 | MORRILTON | 9533 | — | Yes |
| 501-728 | PANGBURN | 1691 | — | Yes |
| 501-729 | JUDSONIA | 1144 | — | Yes |
| 501-730 | CONWAY | 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.