T-MOBILE USA, INC.
15 prefixes in 279 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 279-210 | SCRM MAIN | 6529 | — | Yes |
| 279-216 | SCRM MAIN | 6529 | 2021-12-10 | Yes |
| 279-226 | RSVL MAIN | 6529 | 2022-08-12 | Yes |
| 279-241 | SCRM MAIN | 6529 | 2023-08-23 | Yes |
| 279-245 | FOLSOM | 6529 | 2023-10-18 | Yes |
| 279-246 | RIO LINDA | 6529 | 2023-11-01 | Yes |
| 279-248 | SCRM MAIN | 6529 | 2023-12-04 | Yes |
| 279-249 | ELK GROVE | 6529 | 2023-12-05 | Yes |
| 279-252 | FAIR OAKS | 6529 | 2024-01-10 | Yes |
| 279-253 | RSVL MAIN | 6529 | 2024-01-10 | Yes |
| 279-254 | ELK GROVE | 6529 | 2024-01-23 | Yes |
| 279-257 | SCRM MAIN | 6529 | 2024-02-29 | Yes |
| 279-258 | FOLSOM | 6529 | 2024-03-26 | Yes |
| 279-290 | ELK GROVE | 6529 | 2025-10-30 | Yes |
| 279-944 | SCRM NORTH | 6529 | 2021-12-10 | 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.