T-MOBILE USA, INC.
34 prefixes in 309 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 309-208 | PEORIA | 6529 | — | Yes |
| 309-242 | BLOOMINGTN | 6529 | — | Yes |
| 309-261 | BLOOMINGTN | 6529 | — | Yes |
| 309-262 | BLOOMINGTN | 6529 | — | Yes |
| 309-269 | ROCKISLAND | 6529 | — | Yes |
| 309-275 | BLOOMINGTN | 6529 | — | Yes |
| 309-292 | ROCKISLAND | 6529 | — | — |
| 309-299 | GALESBURG | 6529 | — | Yes |
| 309-303 | PEORIA | 6529 | 2002-02-25 | Yes |
| 309-314 | MOLINE | 6529 | — | Yes |
| 309-336 | BLOOMINGTN | 6529 | 2003-11-10 | Yes |
| 309-340 | PEORIA | 6529 | 2010-10-20 | Yes |
| 309-350 | ROCKISLAND | 6529 | 2018-06-12 | Yes |
| 309-428 | ROCKISLAND | 6529 | 2008-09-08 | Yes |
| 309-453 | PEORIA | 6529 | — | Yes |
| 309-472 | PEORIA | 6529 | — | Yes |
| 309-489 | GENESEO | 6529 | 2003-10-21 | Yes |
| 309-501 | WASHINGTON | 6529 | 2003-01-02 | Yes |
| 309-502 | GENESEO | 6529 | 2003-01-16 | Yes |
| 309-506 | ROCKISLAND | 6529 | 2018-10-04 | Yes |
| 309-520 | ROCKISLAND | 6529 | 2019-01-04 | Yes |
| 309-540 | KEWANEE | 6529 | 2003-07-30 | Yes |
| 309-553 | ROCKISLAND | 6529 | 2019-01-04 | Yes |
| 309-613 | PEKIN | 6529 | 2002-04-17 | Yes |
| 309-631 | ROCKISLAND | 6529 | — | — |
| 309-648 | PEORIA | 6529 | 2001-01-12 | Yes |
| 309-721 | ROCKISLAND | 6529 | 2001-03-16 | Yes |
| 309-750 | BLOOMINGTN | 6529 | 2002-06-10 | Yes |
| 309-847 | KEWANEE | 6529 | 2008-09-04 | — |
| 309-868 | PEORIA | 6529 | 2002-06-10 | Yes |
| 309-922 | PEORIA | 6529 | 2001-08-17 | Yes |
| 309-954 | MACOMB | 6529 | 2016-05-09 | Yes |
| 309-969 | MOLINE | 6529 | 2025-01-07 | Yes |
| 309-989 | PEORIA | 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.