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
Sep 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2025-09-09 | 567-490 | T-MOBILE USA, INC. | 6529 | ASHLAND | OH |
| 2025-09-04 | 319-554 | T-MOBILE USA, INC. | 6529 | BRIGHTON | IA |
| 2025-08-28 | 435-365 | T-MOBILE USA, INC. | 6529 | HEBER CITY | UT |
| 2025-08-26 | 945-399 | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-08-22 | 559-968 | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2025-08-22 | 562-671 | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2025-08-20 | 350-247 | T-MOBILE USA, INC. | 6529 | LODI | CA |
| 2025-08-20 | 350-248 | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-08-20 | 840-281 | T-MOBILE USA, INC. | 6529 | COLTON | CA |
| 2025-08-20 | 945-398 | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-08-19 | 385-612 | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2025-08-19 | 509-708 | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-08-19 | 779-431 | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-08-12 | 224-663 | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 440-982 | T-MOBILE USA, INC. | 6529 | ASHTABULA | OH |
| 2025-08-07 | 682-474 | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-08-07 | 945-396 | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-08-06 | 945-395 | T-MOBILE USA, INC. | 6529 | LEWISVILLE | TX |
| 2025-07-28 | 949-875 | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2025-07-24 | 681-590 | T-MOBILE USA, INC. | 6529 | ANSTED | WV |
| 2025-07-22 | 575-344 | T-MOBILE USA, INC. | 6529 | CANNON AFB | NM |
| 2025-07-21 | 737-424 | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-07-14 | 425-568 | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2025-07-14 | 945-392 | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-07-11 | 520-763 | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2025-07-10 | 725-350 | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2025-07-02 | 945-391 | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-06-26 | 458-347 | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-06-25 | 925-545 | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-06-20 | 253-424 | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-06-18 | 385-608 | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2025-06-18 | 562-796 | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-06-18 | 840-278 | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-06-18 | 951-792 | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2025-06-17 | 224-652 | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-06-17 | 945-387 | T-MOBILE USA, INC. | 6529 | PLANO | TX |
| 2025-06-12 | 712-554 | T-MOBILE USA, INC. | 6529 | LAKE PARK | IA |
| 2025-06-06 | 224-647 | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-06-06 | 737-421 | T-MOBILE USA, INC. | 6529 | ROCKDALE | TX |
| 2025-06-05 | 424-556 | T-MOBILE USA, INC. | 6529 | SNMN SNMN | CA |
| 2025-06-02 | 253-422 | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-05-28 | 505-580 | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2025-05-23 | 608-980 | T-MOBILE USA, INC. | 6529 | REEDSBURG | WI |
| 2025-05-21 | 681-844 | T-MOBILE USA, INC. | 6529 | RICHWOOD | WV |
| 2025-05-19 | 872-384 | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2025-05-16 | 562-819 | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-05-12 | 945-382 | T-MOBILE USA, INC. | 6529 | LEWISVILLE | TX |
| 2025-05-06 | 307-485 | T-MOBILE USA, INC. | 6529 | CASPER | WY |
| 2025-05-06 | 986-294 | T-MOBILE USA, INC. | 6529 | IDAHOFALLS | ID |
| 2025-05-05 | 636-430 | T-MOBILE USA, INC. | 6529 | FORISTELL | MO |
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.