All assignees
525 prefixes in 253 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 253-740 | AUBURN | 5812 | — | — |
| 253-750 | SUMNER | 318J | — | Yes |
| 253-751 | TACOMA | 9638 | — | — |
| 253-752 | TACOMA | 9638 | — | — |
| 253-753 | TACOMA | 5812 | — | Yes |
| 253-754 | TACOMAWVLY | 5562 | — | Yes |
| 253-756 | TACOMA | 9638 | — | — |
| 253-759 | TACOMA | 9638 | — | — |
| 253-761 | TACOMA | 9638 | — | Yes |
| 253-765 | DES MOINES | 7146 | — | Yes |
| 253-766 | KENT | 7146 | — | Yes |
| 253-770 | PUYALLUP | 9638 | — | — |
| 253-773 | KENT | 7146 | — | — |
| 253-777 | TACOMA | 6121 | — | Yes |
| 253-778 | TACOMAWVLY | 6010 | — | Yes |
| 253-779 | TACOMA | 9638 | — | — |
| 253-780 | GRAHAM | 483E | — | Yes |
| 253-785 | DES MOINES | 483E | — | Yes |
| 253-792 | TACOMA | 9638 | — | Yes |
| 253-793 | AUBURN | 483E | — | — |
| 253-796 | KENT | 7146 | 2001-04-23 | Yes |
| 253-797 | AUBURN | 5812 | — | Yes |
| 253-798 | TACOMA | 9638 | — | — |
| 253-799 | PUYALLUP | 483E | — | — |
| 253-800 | TACOMA | 965H | 2019-05-16 | Yes |
| 253-802 | AUBURN | 483E | — | Yes |
| 253-804 | AUBURN | 9638 | — | — |
| 253-811 | XXXXXXXXXX | MULT | — | — |
| 253-813 | KENT | 9638 | — | — |
| 253-815 | DES MOINES | 9638 | — | — |
| 253-820 | TACOMA | 5812 | — | — |
| 253-826 | SUMNER | 9638 | — | — |
| 253-830 | TACOMA | 7173 | — | Yes |
| 253-831 | TACOMAWVLY | 6529 | — | Yes |
| 253-833 | AUBURN | 9638 | — | — |
| 253-835 | DES MOINES | 9638 | — | — |
| 253-838 | DES MOINES | 9638 | — | — |
| 253-839 | DES MOINES | 9638 | — | — |
| 253-840 | PUYALLUP | 9638 | — | — |
| 253-841 | PUYALLUP | 9638 | — | — |
| 253-843 | ROY | 9638 | — | Yes |
| 253-844 | TACOMA | 7229 | 2015-05-18 | Yes |
| 253-845 | PUYALLUP | 9638 | — | — |
| 253-846 | GRAHAM | 9638 | — | — |
| 253-847 | GRAHAM | 9638 | — | — |
| 253-848 | PUYALLUP | 9638 | — | — |
| 253-850 | KENT | 9638 | — | — |
| 253-851 | GIG HARBOR | 2408 | — | — |
| 253-852 | KENT | 9638 | — | — |
| 253-853 | GIG HARBOR | 2408 | — | — |
| 253-854 | KENT | 9638 | — | — |
| 253-856 | KENT | 9638 | — | — |
| 253-857 | GIG HARBOR | 2408 | — | — |
| 253-858 | GIG HARBOR | 2408 | — | — |
| 253-859 | KENT | 9638 | — | — |
| 253-861 | TACOMA | 6529 | — | Yes |
| 253-862 | SUMNER | 9638 | — | — |
| 253-863 | SUMNER | 9638 | — | — |
| 253-864 | PUYALLUP | 9638 | — | — |
| 253-867 | KENT | 7173 | — | Yes |
| 253-872 | KENT | 9638 | — | — |
| 253-874 | DES MOINES | 9638 | — | — |
| 253-875 | GRAHAM | 9638 | — | — |
| 253-876 | AUBURN | 9638 | — | Yes |
| 253-878 | TACOMAWVLY | 6529 | 2001-11-07 | Yes |
| 253-879 | TACOMA | 9638 | — | — |
| 253-880 | AUBURN | 7229 | 2002-09-12 | Yes |
| 253-881 | PUYALLUP | 7274 | 2002-09-12 | Yes |
| 253-882 | TACOMA | 7229 | 2002-09-12 | Yes |
| 253-883 | TACOMAWVLY | 7274 | 2002-09-12 | Yes |
| 253-884 | GIG HARBOR | 2408 | — | Yes |
| 253-886 | AUBURN | 7173 | — | Yes |
| 253-887 | AUBURN | 9638 | — | — |
| 253-888 | TACOMA | 159F | 2012-03-05 | Yes |
| 253-891 | SUMNER | 9638 | — | — |
| 253-893 | KENT | 7173 | — | Yes |
| 253-896 | TACOMAWVLY | 9638 | — | — |
| 253-900 | GIG HARBOR | 965H | 2020-07-14 | Yes |
| 253-903 | TACOMA | 6630 | — | — |
| 253-904 | PUYALLUP | 7146 | 2001-04-23 | Yes |
| 253-905 | TACOMA | 6010 | — | — |
| 253-906 | TACOMA | 6010 | — | — |
| 253-911 | XXXXXXXXXX | MULT | — | — |
| 253-912 | TACOMA | 9638 | — | — |
| 253-921 | TACOMAWVLY | 6529 | — | Yes |
| 253-922 | TACOMAWVLY | 9638 | — | — |
| 253-924 | TACOMAWVLY | 9638 | — | Yes |
| 253-925 | TACOMAWVLY | 9638 | — | — |
| 253-926 | TACOMAWVLY | 9638 | — | — |
| 253-927 | TACOMAWVLY | 9638 | — | — |
| 253-928 | TACOMAWVLY | 9638 | 2002-08-26 | — |
| 253-929 | AUBURN | 7146 | 2001-04-23 | Yes |
| 253-931 | AUBURN | 9638 | — | — |
| 253-934 | TACOMA | 9638 | — | — |
| 253-939 | AUBURN | 9638 | — | — |
| 253-941 | DES MOINES | 9638 | — | — |
| 253-942 | TACOMAWVLY | 9638 | — | — |
| 253-943 | TACOMAWVLY | 9638 | — | Yes |
| 253-944 | TACOMAWVLY | 9638 | 2002-12-17 | Yes |
| 253-945 | DES MOINES | 9638 | — | — |
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.