NumberResearchRecent prefix assignments
5 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2024-02-28 | 920-957 | T-MOBILE USA, INC. | 6529 | FONDDU LAC | WI |
| 2024-02-23 | 464-239 | T-MOBILE USA, INC. | 6529 | BLUEISLAND | IL |
| 2024-02-23 | 464-240 | T-MOBILE USA, INC. | 6529 | BELLWOOD | IL |
| 2024-02-22 | 253-407 | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2024-02-21 | 213-795 | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2024-02-21 | 608-917 | T-MOBILE USA, INC. | 6529 | WISCONDLLS | WI |
| 2024-02-21 | 628-297 | T-MOBILE USA, INC. | 6529 | SNFC MT-EV | CA |
| 2024-02-20 | 283-218 | T-MOBILE USA, INC. | 6529 | CLERMONT | OH |
| 2024-02-20 | 283-219 | T-MOBILE USA, INC. | 6529 | HAMILTON | OH |
| 2024-02-20 | 937-326 | T-MOBILE USA, INC. | 6529 | MSBGWCRLTN | OH |
| 2024-02-20 | 937-983 | T-MOBILE USA, INC. | 6529 | TIPP CITY | OH |
| 2024-02-16 | 520-728 | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2024-02-16 | 564-258 | T-MOBILE USA, INC. | 6529 | VANCOUVER | WA |
| 2024-02-14 | 213-796 | T-MOBILE USA, INC. | 6529 | LSAN DA 04 | CA |
| 2024-02-14 | 310-757 | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2024-02-14 | 415-718 | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-02-14 | 442-436 | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2024-02-14 | 747-352 | T-MOBILE USA, INC. | 6529 | NORTHRIDGE | CA |
| 2024-02-14 | 801-385 | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-02-09 | 219-368 | T-MOBILE USA, INC. | 6529 | HAMMOND | IN |
| 2024-02-09 | 219-371 | T-MOBILE USA, INC. | 6529 | HEBRON | IN |
| 2024-02-08 | 708-900 | T-MOBILE USA, INC. | 6529 | RIVERDALE | IL |
| 2024-02-08 | 708-994 | T-MOBILE USA, INC. | 6529 | SUMMIT | IL |
| 2024-02-08 | 730-235 | T-MOBILE USA, INC. | 6529 | MURPHYSBO | IL |
| 2024-02-08 | 730-236 | T-MOBILE USA, INC. | 6529 | TROY | IL |
| 2024-02-08 | 779-386 | T-MOBILE USA, INC. | 6529 | PRINCETON | IL |
| 2024-02-08 | 815-779 | T-MOBILE USA, INC. | 6529 | PLAINFIELD | IL |
| 2024-02-08 | 971-480 | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2024-02-07 | 928-518 | T-MOBILE USA, INC. | 6529 | SEDONA | AZ |
| 2024-01-23 | 279-254 | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2024-01-23 | 341-244 | T-MOBILE USA, INC. | 6529 | OKLD TRNID | CA |
| 2024-01-23 | 562-729 | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2024-01-23 | 575-316 | T-MOBILE USA, INC. | 6529 | TAOS | NM |
| 2024-01-23 | 626-745 | T-MOBILE USA, INC. | 6529 | SIERRAMADR | CA |
| 2024-01-23 | 661-996 | T-MOBILE USA, INC. | 6529 | BKFD MAIN | CA |
| 2024-01-19 | 213-794 | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2024-01-19 | 350-218 | T-MOBILE USA, INC. | 6529 | MANTECA | CA |
| 2024-01-19 | 369-217 | T-MOBILE USA, INC. | 6529 | VALLEJO | CA |
| 2024-01-19 | 559-882 | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2024-01-19 | 747-350 | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2024-01-19 | 775-523 | T-MOBILE USA, INC. | 6529 | SWEETWATER | NV |
| 2024-01-19 | 840-251 | T-MOBILE USA, INC. | 6529 | REDLANDS | CA |
| 2024-01-19 | 925-538 | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-01-19 | 971-479 | T-MOBILE USA, INC. | 6529 | ASTORIA | OR |
| 2024-01-16 | 720-914 | T-MOBILE USA, INC. | 6529 | FORTLUPTON | CO |
| 2024-01-12 | 253-406 | T-MOBILE USA, INC. | 6529 | GRAHAM | WA |
| 2024-01-12 | 725-322 | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2024-01-11 | 213-781 | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2024-01-11 | 213-783 | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2024-01-11 | 213-791 | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.