All assignees
778 prefixes in 509 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 509-701 | SPOKANE | 6529 | — | Yes |
| 509-702 | EPHRATA | 5812 | 2025-04-18 | Yes |
| 509-703 | SPOKANE | 5812 | — | Yes |
| 509-704 | WALLAWALLA | 6010 | 2024-11-18 | Yes |
| 509-705 | ELLENSBURG | 6010 | 2024-12-23 | Yes |
| 509-706 | KENNEWICK | 6010 | 2025-06-27 | Yes |
| 509-707 | MOSES LAKE | 3229 | 2001-05-03 | Yes |
| 509-708 | ELLENSBURG | 6529 | 2025-08-19 | Yes |
| 509-709 | PASCO | 6010 | 2025-08-29 | Yes |
| 509-710 | SPOKANE | 5812 | — | — |
| 509-711 | XXXXXXXXXX | MULT | — | — |
| 509-712 | SUNNYSIDE | 6529 | 2021-04-16 | Yes |
| 509-713 | RICHLAND | 5812 | 2008-08-29 | Yes |
| 509-714 | SPOKANE | 6529 | — | Yes |
| 509-715 | PULLMAN | 6121 | — | Yes |
| 509-716 | QUINCY | 6010 | 2025-10-23 | Yes |
| 509-717 | EPHRATA | 3229 | 2001-07-17 | Yes |
| 509-718 | ELLENSBURG | 6529 | 2026-01-08 | Yes |
| 509-719 | WAPATO | 6010 | 2026-03-30 | Yes |
| 509-720 | SPOKANE | 6010 | 2008-07-09 | Yes |
| 509-721 | DAVENPORT | 6010 | — | Yes |
| 509-722 | CHEWELAH | 2408 | — | Yes |
| 509-723 | SPOKANE | 483E | 2008-06-10 | Yes |
| 509-724 | SPOKANE | 9638 | 2011-10-19 | Yes |
| 509-725 | DAVENPORT | 2408 | — | Yes |
| 509-726 | WENATCHEE | 483E | — | Yes |
| 509-727 | KENNEWICK | 6529 | — | Yes |
| 509-728 | YAKIMA | 6529 | — | Yes |
| 509-729 | WENATCHEE | 147L | 2026-07-02 | Yes |
| 509-730 | WALLAWALLA | 6529 | 2008-03-06 | Yes |
| 509-731 | YAKIMA | 5812 | 2008-10-23 | Yes |
| 509-732 | NORTHPORT | 9638 | — | Yes |
| 509-733 | BREWSTER | 6010 | — | Yes |
| 509-734 | KENNEWICK | 4324 | — | — |
| 509-735 | KENNEWICK | 4324 | — | — |
| 509-736 | KENNEWICK | 4324 | — | — |
| 509-737 | KENNEWICK | 4324 | — | Yes |
| 509-738 | KETTLE FLS | 2408 | — | Yes |
| 509-739 | ALMIRA | 453J | — | Yes |
| 509-740 | OMAK | 7146 | 2012-12-14 | Yes |
| 509-741 | WENATCHEE | 6529 | 2001-09-28 | Yes |
| 509-742 | SPOKANE | 9638 | — | Yes |
| 509-743 | SPOKANE | 732J | — | Yes |
| 509-744 | SPOKANE | 9638 | — | — |
| 509-745 | DOUGLASCO | 4324 | — | Yes |
| 509-746 | YAKIMA | 6270 | 2022-09-30 | Yes |
| 509-747 | SPOKANE | 9638 | — | — |
| 509-748 | DALLESPORT | 4521 | — | Yes |
| 509-749 | EUREKA | 2408 | — | Yes |
| 509-750 | MOSES LAKE | 6010 | — | — |
| 509-751 | CLARKSTON | 9638 | — | Yes |
| 509-752 | SPOKANE | 483E | — | — |
| 509-753 | SPOKANE | 483E | — | — |
| 509-754 | EPHRATA | 9638 | — | — |
| 509-755 | SPOKANE | 7229 | — | — |
| 509-756 | SPOKANE | 483E | — | — |
| 509-757 | SPOKANE | 483E | — | — |
| 509-758 | CLARKSTON | 9638 | — | — |
| 509-759 | YAKIMA | 6529 | 2011-03-07 | Yes |
| 509-760 | MOSES LAKE | 6010 | — | — |
| 509-761 | MOSES LAKE | 483E | — | Yes |
| 509-762 | MOSES LAKE | 9638 | — | — |
| 509-763 | WENATCHEE | 4324 | — | Yes |
| 509-764 | MOSES LAKE | 9638 | — | — |
| 509-765 | MOSES LAKE | 9638 | — | — |
| 509-766 | MOSES LAKE | 9638 | — | — |
| 509-767 | DALLESPORT | 4521 | — | Yes |
| 509-768 | SPOKANE | 6529 | — | — |
| 509-769 | CLARKSTON | 7229 | — | Yes |
| 509-770 | MOSES LAKE | 1477 | — | Yes |
| 509-771 | MOSES LAKE | 6529 | — | Yes |
| 509-772 | GOLDENDALE | 7146 | — | Yes |
| 509-773 | GOLDENDALE | 4521 | — | Yes |
| 509-774 | WH SALMON | 6121 | 2002-06-12 | Yes |
| 509-775 | REPUBLIC | 4423 | — | Yes |
| 509-776 | COLUMBIA | 6121 | 2002-06-12 | Yes |
| 509-777 | SPOKANE | 7229 | — | Yes |
| 509-778 | PROSSER | 6121 | 2002-06-12 | Yes |
| 509-779 | CURLEW | 4423 | — | Yes |
| 509-780 | CLARKSTON | 5812 | — | Yes |
| 509-781 | PROSSER | 6010 | — | Yes |
| 509-782 | WENATCHEE | 4324 | — | — |
| 509-783 | KENNEWICK | 4324 | — | — |
| 509-784 | WENATCHEE | 4324 | — | Yes |
| 509-785 | GEORGE | 4324 | — | Yes |
| 509-786 | PROSSER | 4521 | — | — |
| 509-787 | QUINCY | 4324 | — | — |
| 509-788 | PROSSER | 4521 | — | Yes |
| 509-789 | SPOKANE | 7455 | — | Yes |
| 509-790 | SUNNYSIDE | 622J | — | Yes |
| 509-791 | GRANDVIEW | 597F | 2023-07-12 | Yes |
| 509-792 | PASCO | 5812 | 2013-10-22 | Yes |
| 509-793 | MOSES LAKE | 9638 | — | Yes |
| 509-794 | QUINCY | 939H | — | Yes |
| 509-795 | SPOKANE | 7173 | 2010-02-23 | Yes |
| 509-796 | REARDAN | 2408 | — | Yes |
| 509-797 | QUINCY | 5812 | — | Yes |
| 509-798 | SPOKANE | 732J | — | Yes |
| 509-799 | SPOKANE | 048L | 2024-11-26 | Yes |
| 509-800 | CLARKSTON | 073H | — | 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.