T-MOBILE USA, INC.
64 prefixes in 323 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 323-251 | LSAN DA 14 | 6529 | — | Yes |
| 323-286 | LSAN DA 03 | 6529 | — | Yes |
| 323-304 | LSAN DA 14 | 6529 | 2001-12-26 | — |
| 323-350 | LSAN DA 04 | 6529 | 2002-09-19 | — |
| 323-377 | LSAN DA 14 | 6529 | — | Yes |
| 323-379 | LSAN DA 04 | 6529 | — | Yes |
| 323-381 | LSAN DA 13 | 6529 | — | Yes |
| 323-403 | LSAN DA 12 | 6529 | — | Yes |
| 323-448 | LSAN DA 09 | 6529 | — | Yes |
| 323-455 | LSAN DA 09 | 6529 | 2007-04-24 | Yes |
| 323-470 | LSAN DA 03 | 6529 | 2007-05-18 | Yes |
| 323-495 | LSAN DA 02 | 6529 | — | Yes |
| 323-499 | LSAN DA 14 | 6529 | — | Yes |
| 323-504 | LSAN DA 14 | 6529 | — | Yes |
| 323-509 | LSAN DA 03 | 6529 | — | Yes |
| 323-519 | MONTEBELLO | 6529 | 2007-07-03 | Yes |
| 323-530 | MONTEBELLO | 6529 | 2016-07-22 | Yes |
| 323-532 | LSAN DA 03 | 6529 | 2007-07-03 | Yes |
| 323-540 | LSAN DA 03 | 6529 | — | Yes |
| 323-542 | LSAN DA 03 | 6529 | 2007-08-29 | Yes |
| 323-561 | LSAN DA 03 | 6529 | 2015-02-03 | Yes |
| 323-570 | LSAN DA 09 | 6529 | 2006-09-21 | Yes |
| 323-597 | MONTEBELLO | 6529 | 2014-10-17 | Yes |
| 323-612 | LSAN DA 04 | 6529 | 2015-09-22 | Yes |
| 323-615 | LSAN DA 09 | 6529 | 2015-08-26 | Yes |
| 323-616 | LSAN DA 03 | 6529 | 2016-03-09 | Yes |
| 323-620 | LSAN DA 11 | 6529 | 2002-05-17 | — |
| 323-621 | MONTEBELLO | 6529 | 2014-01-27 | Yes |
| 323-649 | LSAN DA 11 | 6529 | — | Yes |
| 323-688 | LSAN DA 14 | 6529 | 2014-09-08 | Yes |
| 323-690 | LSAN DA 11 | 6529 | 2015-05-05 | Yes |
| 323-702 | LSAN DA 12 | 6529 | 2002-05-17 | — |
| 323-703 | LSAN DA 14 | 6529 | 2007-10-10 | Yes |
| 323-712 | MONTEBELLO | 6529 | 2002-06-14 | Yes |
| 323-714 | MONTEBELLO | 6529 | 2013-07-15 | Yes |
| 323-716 | LSAN DA 11 | 6529 | 2015-11-17 | Yes |
| 323-740 | LSAN DA 11 | 6529 | 2015-02-06 | Yes |
| 323-742 | MONTEBELLO | 6529 | 2006-04-25 | Yes |
| 323-747 | LSAN DA 03 | 6529 | 2006-10-16 | Yes |
| 323-788 | LSAN DA 05 | 6529 | 2002-09-19 | — |
| 323-794 | LSAN DA 14 | 6529 | 2015-02-24 | Yes |
| 323-824 | LSAN DA 14 | 6529 | 2024-04-12 | Yes |
| 323-831 | LSAN DA 05 | 6529 | 2016-10-18 | Yes |
| 323-840 | LSAN DA 11 | 6529 | 2015-08-26 | Yes |
| 323-841 | LSAN DA 09 | 6529 | 2001-09-19 | — |
| 323-842 | LSAN DA 03 | 6529 | 2002-05-17 | — |
| 323-847 | LSAN DA 13 | 6529 | 2015-03-09 | Yes |
| 323-855 | LSAN DA 12 | 6529 | — | Yes |
| 323-861 | LSAN DA 09 | 6529 | 2006-02-22 | Yes |
| 323-864 | LSAN DA 12 | 6529 | — | Yes |
| 323-880 | LSAN DA 09 | 6529 | 2017-04-07 | Yes |
| 323-892 | LSAN DA 03 | 6529 | 2006-10-04 | Yes |
| 323-899 | LSAN DA 13 | 6529 | 2002-05-17 | — |
| 323-925 | LSAN DA 03 | 6529 | 2016-09-26 | Yes |
| 323-926 | MONTEBELLO | 6529 | 2015-02-09 | Yes |
| 323-942 | LSAN DA 09 | 6529 | — | Yes |
| 323-943 | LSAN DA 05 | 6529 | — | Yes |
| 323-949 | MONTEBELLO | 6529 | 2019-03-19 | Yes |
| 323-961 | LSAN DA 09 | 6529 | 2016-07-15 | Yes |
| 323-974 | LSAN DA 12 | 6529 | — | Yes |
| 323-975 | LSAN DA 03 | 6529 | 2015-04-13 | Yes |
| 323-977 | LSAN DA 09 | 6529 | — | Yes |
| 323-985 | LSAN DA 08 | 6529 | — | Yes |
| 323-994 | LSAN DA 14 | 6529 | 2016-11-11 | 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.