T-MOBILE USA, INC.
42 prefixes in 408 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 408-210 | SNJS WEST | 6529 | — | Yes |
| 408-230 | SUNNYVALE | 6529 | — | Yes |
| 408-303 | SARATOGA | 6529 | 2023-07-13 | Yes |
| 408-304 | SARATOGA | 6529 | 2024-02-29 | Yes |
| 408-310 | MORGANHILL | 6529 | 2001-12-26 | Yes |
| 408-373 | SUNNYVALE | 6529 | — | Yes |
| 408-375 | CAMPBELL | 6529 | — | Yes |
| 408-390 | SNJS WEST | 6529 | 2001-04-25 | Yes |
| 408-393 | SUNNYVALE | 6529 | — | Yes |
| 408-394 | SUNNYVALE | 6529 | — | Yes |
| 408-396 | SNJS WEST | 6529 | 2001-04-25 | Yes |
| 408-409 | CAMPBELL | 6529 | 2008-11-07 | Yes |
| 408-420 | SUNNYVALE | 6529 | — | Yes |
| 408-422 | SAN MARTIN | 6529 | — | Yes |
| 408-426 | CAMPBELL | 6529 | 2001-05-17 | Yes |
| 408-429 | CAMPBELL | 6529 | 2002-09-19 | Yes |
| 408-455 | LOS GATOS | 6529 | 2002-01-29 | Yes |
| 408-460 | CAMPBELL | 6529 | 2002-01-29 | Yes |
| 408-461 | SAN MARTIN | 6529 | 2001-05-17 | Yes |
| 408-466 | CAMPBELL | 6529 | 2006-12-19 | Yes |
| 408-480 | SUNNYVALE | 6529 | 2001-12-28 | Yes |
| 408-569 | SNJS WEST | 6529 | 2001-04-25 | Yes |
| 408-580 | SNJS SOUTH | 6529 | — | Yes |
| 408-590 | SNJS WEST | 6529 | — | Yes |
| 408-592 | SNJS NORTH | 6529 | — | Yes |
| 408-593 | SUNNYVALE | 6529 | — | Yes |
| 408-600 | SNJS SOUTH | 6529 | 2007-08-16 | Yes |
| 408-627 | SNJS NORTH | 6529 | 2004-10-29 | Yes |
| 408-639 | SNJS WEST | 6529 | — | Yes |
| 408-643 | SNJS NORTH | 6529 | 2011-10-21 | Yes |
| 408-644 | SNJS SOUTH | 6529 | 2001-11-28 | — |
| 408-646 | SNJS WEST | 6529 | 2001-11-28 | — |
| 408-659 | MORGANHILL | 6529 | 2010-03-30 | Yes |
| 408-667 | SNJS NORTH | 6529 | 2001-10-18 | — |
| 408-677 | SNJS SOUTH | 6529 | 2006-02-22 | Yes |
| 408-680 | CAMPBELL | 6529 | 2011-01-26 | Yes |
| 408-690 | SNJS WEST | 6529 | — | Yes |
| 408-726 | SNJS NORTH | 6529 | 2005-02-02 | Yes |
| 408-775 | SNJS NORTH | 6529 | 2008-06-25 | Yes |
| 408-791 | SNJS NORTH | 6529 | 2010-08-30 | Yes |
| 408-829 | SNJS WEST | 6529 | 2001-04-25 | Yes |
| 408-898 | SARATOGA | 6529 | 2001-10-18 | 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.