T-MOBILE USA, INC.
54 prefixes in 414 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 414-206 | MILWAUKZN4 | 6529 | 2015-05-22 | Yes |
| 414-210 | MILWAUKZN1 | 6529 | 2015-02-05 | Yes |
| 414-213 | MILWAUKZN1 | 6529 | — | Yes |
| 414-233 | MILWAUKZN1 | 6529 | 2011-01-31 | Yes |
| 414-234 | MILWAUKZN5 | 6529 | 2002-04-02 | Yes |
| 414-235 | MILWAUKZN3 | 6529 | 2002-04-02 | Yes |
| 414-236 | MILWAUKZN4 | 6529 | 2002-04-02 | Yes |
| 414-241 | MILWAUKZN5 | 6529 | — | — |
| 414-243 | MILWAUKZN1 | 6529 | 2003-01-22 | Yes |
| 414-249 | MILWAUKZN1 | 6529 | 2013-09-20 | Yes |
| 414-262 | MILWAUKZN4 | 6529 | 2023-08-28 | Yes |
| 414-275 | MILWAUKZN1 | 6529 | 2015-08-13 | Yes |
| 414-317 | MILWAUKZN1 | 6529 | 2022-01-20 | Yes |
| 414-324 | MILWAUKZN1 | 6529 | — | — |
| 414-334 | MILWAUKZN5 | 6529 | 2003-02-24 | Yes |
| 414-349 | MILWAUKZN1 | 6529 | — | Yes |
| 414-350 | MILWAUKZN1 | 6529 | — | Yes |
| 414-364 | MILWAUKZN4 | 6529 | — | — |
| 414-366 | MILWAUKZN1 | 6529 | 2011-02-25 | Yes |
| 414-381 | MILWAUKZN4 | 6529 | 2022-08-29 | Yes |
| 414-388 | MILWAUKZN1 | 6529 | 2011-06-09 | Yes |
| 414-391 | MILWAUKZN1 | 6529 | 2011-06-21 | Yes |
| 414-394 | MILWAUKZN1 | 6529 | 2011-07-27 | Yes |
| 414-397 | MILWAUKZN1 | 6529 | — | Yes |
| 414-406 | MILWAUKZN1 | 6529 | — | Yes |
| 414-439 | MILWAUKZN1 | 6529 | 2014-03-17 | Yes |
| 414-446 | MILWAUKZN4 | 6529 | 2004-03-01 | Yes |
| 414-460 | MILWAUKZN1 | 6529 | — | Yes |
| 414-467 | MILWAUKZN1 | 6529 | — | Yes |
| 414-484 | MILWAUKZN1 | 6529 | 2011-01-31 | Yes |
| 414-499 | MILWAUKZN1 | 6529 | 2011-01-31 | Yes |
| 414-509 | MILWAUKZN1 | 6529 | 2015-08-13 | Yes |
| 414-595 | MILWAUKZN1 | 6529 | 2013-04-25 | Yes |
| 414-628 | MILWAUKZN3 | 6529 | — | — |
| 414-629 | MILWAUKZN1 | 6529 | 2015-05-14 | Yes |
| 414-639 | MILWAUKZN1 | 6529 | 2011-06-03 | Yes |
| 414-732 | MILWAUKZN1 | 6529 | — | Yes |
| 414-736 | MILWAUKZN1 | 6529 | 2002-01-16 | Yes |
| 414-737 | MILWAUKZN5 | 6529 | 2002-01-16 | Yes |
| 414-739 | MILWAUKZN1 | 6529 | 2011-01-31 | Yes |
| 414-745 | MILWAUKZN1 | 6529 | — | Yes |
| 414-788 | MILWAUKZN1 | 6529 | — | Yes |
| 414-797 | MILWAUKZN4 | 6529 | 2013-10-08 | Yes |
| 414-803 | MILWAUKZN1 | 6529 | — | Yes |
| 414-807 | MILWAUKZN1 | 6529 | — | Yes |
| 414-808 | MILWAUKZN1 | 6529 | 2015-06-09 | Yes |
| 414-839 | MILWAUKZN1 | 6529 | — | Yes |
| 414-865 | MILWAUKZN4 | 6529 | 2013-04-25 | Yes |
| 414-899 | MILWAUKZN1 | 6529 | — | Yes |
| 414-914 | MILWAUKZN1 | 6529 | 2011-03-18 | Yes |
| 414-915 | MILWAUKZN1 | 6529 | — | Yes |
| 414-928 | MILWAUKZN4 | 6529 | 2015-05-21 | Yes |
| 414-949 | MILWAUKZN1 | 6529 | 2010-10-25 | Yes |
| 414-975 | MILWAUKZN1 | 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.