MCIMETRO ACCESS TRANSMISSION SERVICES LLC
12 prefixes in 253 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 253-234 | KENT | 7229 | 2001-03-29 | Yes |
| 253-354 | TACOMA | 7229 | 2022-02-14 | Yes |
| 253-371 | TACOMA | 7229 | 2013-10-24 | — |
| 253-374 | AUBURN | 7229 | 2021-09-28 | Yes |
| 253-414 | TACOMA | 7229 | — | Yes |
| 253-479 | KENT | 7229 | — | — |
| 253-518 | KENT | 7229 | — | Yes |
| 253-525 | GIG HARBOR | 7229 | 2018-04-06 | Yes |
| 253-561 | AUBURN | 7229 | — | Yes |
| 253-844 | TACOMA | 7229 | 2015-05-18 | Yes |
| 253-880 | AUBURN | 7229 | 2002-09-12 | Yes |
| 253-882 | TACOMA | 7229 | 2002-09-12 | 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.