T-MOBILE USA, INC.
28 prefixes in 628 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 628-202 | BELVEDERE | 6529 | 2016-04-01 | Yes |
| 628-204 | NICASIO | 6529 | 2016-07-01 | Yes |
| 628-213 | SNFC CNTRL | 6529 | 2016-12-01 | Yes |
| 628-236 | NOVATO | 6529 | 2016-02-04 | Yes |
| 628-237 | SAUSALITO | 6529 | 2016-03-04 | Yes |
| 628-241 | SNFC JUNPR | 6529 | 2016-07-01 | Yes |
| 628-252 | CORTEMADRA | 6529 | 2016-07-01 | Yes |
| 628-258 | NICASIO | 6529 | 2017-10-19 | Yes |
| 628-264 | SNFC CNTRL | 6529 | 2018-12-05 | Yes |
| 628-269 | SAN RAFAEL | 6529 | 2019-09-30 | Yes |
| 628-276 | SNFC CNTRL | 6529 | 2021-01-11 | Yes |
| 628-283 | SNFC MT-EV | 6529 | 2022-01-07 | Yes |
| 628-290 | SNFC JUNPR | 6529 | 2023-07-13 | Yes |
| 628-297 | SNFC MT-EV | 6529 | 2024-02-21 | Yes |
| 628-298 | SNFC JUNPR | 6529 | 2024-02-29 | Yes |
| 628-301 | NOVATO | 6529 | 2024-03-06 | Yes |
| 628-302 | CORTEMADRA | 6529 | 2024-03-06 | Yes |
| 628-304 | SNFC JUNPR | 6529 | 2024-05-01 | Yes |
| 628-305 | SAN RAFAEL | 6529 | 2024-05-22 | Yes |
| 628-306 | SNFC CNTRL | 6529 | 2024-05-31 | Yes |
| 628-308 | SNFC MT-EV | 6529 | 2024-07-30 | Yes |
| 628-309 | SNFC CNTRL | 6529 | 2024-07-30 | Yes |
| 628-310 | BELVEDERE | 6529 | 2024-04-03 | Yes |
| 628-312 | SNFC CNTRL | 6529 | 2024-08-30 | Yes |
| 628-313 | SAN RAFAEL | 6529 | 2021-11-03 | Yes |
| 628-315 | BELVEDERE | 6529 | 2024-09-25 | Yes |
| 628-329 | SAUSALITO | 6529 | 2025-11-06 | Yes |
| 628-358 | SNFC CNTRL | 6529 | — | 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.