T-MOBILE USA, INC.
12 prefixes in 341 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 341-213 | OKLD MN-PD | 6529 | 2022-01-10 | Yes |
| 341-221 | HAYWARD | 6529 | 2022-02-28 | Yes |
| 341-231 | ELSBR-PINL | 6529 | 2023-05-08 | Yes |
| 341-240 | HAYWARD | 6529 | 2023-11-01 | Yes |
| 341-242 | RICHMOND | 6529 | 2023-11-08 | Yes |
| 341-244 | OKLD TRNID | 6529 | 2024-01-23 | Yes |
| 341-251 | ELSBR-PINL | 6529 | 2024-03-27 | Yes |
| 341-252 | FRNK MAIN | 6529 | 2024-05-31 | Yes |
| 341-254 | OKLD BKLY | 6529 | 2024-09-09 | Yes |
| 341-256 | OKLD FRTVL | 6529 | 2024-09-12 | Yes |
| 341-259 | ELSBR-PINL | 6529 | 2024-11-14 | Yes |
| 341-265 | ELSBR-PINL | 6529 | 2025-11-28 | 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.