T-MOBILE USA, INC.
41 prefixes in 435 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 435-219 | VERNAL | 6529 | 2007-07-12 | Yes |
| 435-224 | TOOELE | 6529 | 2001-06-27 | Yes |
| 435-225 | BRIGHAM CY | 6529 | 2001-06-27 | Yes |
| 435-229 | ST GEORGE | 6529 | — | Yes |
| 435-232 | LOGAN | 6529 | — | Yes |
| 435-237 | BRIGHAM CY | 6529 | — | Yes |
| 435-239 | BRIGHAM CY | 6529 | 2001-05-11 | Yes |
| 435-241 | TOOELE | 6529 | — | Yes |
| 435-267 | CEDAR CITY | 6529 | — | Yes |
| 435-282 | TREMONTON | 6529 | 2006-12-20 | Yes |
| 435-294 | LOGAN | 6529 | — | Yes |
| 435-313 | ST GEORGE | 6529 | 2001-08-17 | — |
| 435-314 | EPHRAIM | 6529 | 2010-07-23 | Yes |
| 435-319 | ST GEORGE | 6529 | 2011-09-19 | Yes |
| 435-327 | CEDAR CITY | 6529 | 2001-08-17 | Yes |
| 435-328 | HEBER CITY | 6529 | 2024-05-23 | Yes |
| 435-339 | BRIGHAM CY | 6529 | 2012-08-15 | Yes |
| 435-360 | ST GEORGE | 6529 | 2024-05-31 | Yes |
| 435-365 | HEBER CITY | 6529 | 2025-08-28 | Yes |
| 435-369 | BRIGHAM CY | 6529 | 2025-12-03 | Yes |
| 435-374 | LOGAN | 6529 | 2007-10-25 | Yes |
| 435-414 | ST GEORGE | 6529 | 2011-11-21 | Yes |
| 435-496 | TOOELE | 6529 | — | Yes |
| 435-512 | LOGAN | 6529 | — | — |
| 435-513 | PARK CITY | 6529 | — | Yes |
| 435-525 | ST GEORGE | 6529 | 2011-01-27 | Yes |
| 435-531 | CEDAR CITY | 6529 | — | Yes |
| 435-549 | VERNAL | 6529 | 2011-07-06 | Yes |
| 435-580 | NEPHI | 6529 | 2002-02-21 | Yes |
| 435-602 | PARK CITY | 6529 | — | Yes |
| 435-621 | VERNAL | 6529 | 2004-08-12 | Yes |
| 435-701 | CEDAR CITY | 6529 | — | Yes |
| 435-703 | ST GEORGE | 6529 | — | Yes |
| 435-705 | ST GEORGE | 6529 | — | Yes |
| 435-714 | PARK CITY | 6529 | — | Yes |
| 435-731 | PARK CITY | 6529 | — | Yes |
| 435-764 | LOGAN | 6529 | — | — |
| 435-850 | TOOELE | 6529 | — | Yes |
| 435-862 | ST GEORGE | 6529 | 2002-10-18 | Yes |
| 435-962 | PARK CITY | 6529 | — | Yes |
| 435-994 | LOGAN | 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.