All assignees
525 prefixes in 253 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 253-946 | DES MOINES | 9638 | — | — |
| 253-948 | TACOMA | 6121 | — | Yes |
| 253-950 | — | — | ||
| 253-951 | AUBURN | 6529 | — | Yes |
| 253-952 | TACOMAWVLY | 9638 | — | — |
| 253-954 | TACOMAWVLY | 6121 | — | Yes |
| 253-958 | — | — | ||
| 253-959 | — | — | ||
| 253-961 | TACOMA | 6529 | — | Yes |
| 253-964 | TACOMA | 9638 | — | — |
| 253-966 | TACOMA | 9638 | 2001-04-23 | — |
| 253-967 | TACOMA | 9638 | 2001-04-23 | — |
| 253-968 | TACOMA | 9638 | 2001-04-23 | — |
| 253-970 | TACOMA | 6010 | — | — |
| 253-973 | TACOMA | 6010 | — | — |
| 253-976 | — | — | ||
| 253-981 | KENT | 7173 | — | Yes |
| 253-982 | TACOMA | 9638 | — | — |
| 253-983 | TACOMA | 9638 | — | — |
| 253-984 | TACOMA | 9638 | — | — |
| 253-985 | TACOMA | 6010 | — | Yes |
| 253-987 | SUMNER | 7146 | 2001-04-23 | Yes |
| 253-988 | TACOMA | 6529 | — | Yes |
| 253-993 | TACOMAWVLY | 6010 | 2018-04-05 | Yes |
| 253-999 | TACOMA | 073H | 2017-02-22 | 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.