T-MOBILE USA, INC.
17 prefixes in 712 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 712-203 | SIOUX CITY | 6529 | 2001-04-09 | Yes |
| 712-204 | SIOUX CITY | 6529 | — | Yes |
| 712-301 | SIOUX CITY | 6529 | — | Yes |
| 712-346 | SPENCER | 6529 | 2002-10-02 | Yes |
| 712-381 | ROCKRAPIDS | 6529 | 2018-03-09 | Yes |
| 712-509 | SIOUX CITY | 6529 | 2018-02-12 | Yes |
| 712-538 | POCAHONTAS | 6529 | 2018-03-08 | Yes |
| 712-554 | LAKE PARK | 6529 | 2025-06-12 | Yes |
| 712-577 | SIOUX CITY | 6529 | 2006-01-09 | Yes |
| 712-578 | HULL | 6529 | 2007-12-11 | Yes |
| 712-626 | PRIMGHAR | 6529 | — | Yes |
| 712-686 | SCRANTON | 6529 | 2018-03-02 | Yes |
| 712-699 | WALL LAKE | 6529 | 2018-03-16 | Yes |
| 712-797 | WALL LAKE | 6529 | 2005-08-08 | — |
| 712-798 | GEORGE | 6529 | 2018-03-08 | Yes |
| 712-904 | AKRON | 6529 | 2009-03-31 | Yes |
| 712-952 | OTO | 6529 | 2022-02-16 | 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.