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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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2024-01-11 | 350-217 | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2024-01-11 | 415-791 | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-01-11 | 442-431 | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-01-11 | 505-601 | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2024-01-11 | 619-257 | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2024-01-11 | 626-742 | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2024-01-11 | 626-743 | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2024-01-11 | 669-340 | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2024-01-11 | 820-225 | T-MOBILE USA, INC. | 6529 | GUADALUPE | CA |
| 2024-01-11 | 840-250 | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-01-11 | 986-273 | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2024-01-10 | 213-773 | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2024-01-10 | 279-252 | T-MOBILE USA, INC. | 6529 | FAIR OAKS | CA |
| 2024-01-10 | 279-253 | T-MOBILE USA, INC. | 6529 | RSVL MAIN | CA |
| 2024-01-10 | 369-216 | T-MOBILE USA, INC. | 6529 | UKIAH | CA |
| 2024-01-10 | 562-727 | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2024-01-10 | 626-738 | T-MOBILE USA, INC. | 6529 | AZUSA | CA |
| 2024-01-10 | 626-740 | T-MOBILE USA, INC. | 6529 | ARCADIA | CA |
| 2024-01-10 | 669-339 | T-MOBILE USA, INC. | 6529 | SAN MARTIN | CA |
| 2024-01-10 | 730-233 | T-MOBILE USA, INC. | 6529 | MCCLURE | IL |
| 2024-01-09 | 779-384 | T-MOBILE USA, INC. | 6529 | HARVARD | IL |
| 2024-01-05 | 224-537 | T-MOBILE USA, INC. | 6529 | DESPLAINES | IL |
| 2024-01-05 | 730-231 | T-MOBILE USA, INC. | 6529 | E ST LOUIS | IL |
| 2024-01-04 | 872-350 | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2024-01-02 | 818-463 | T-MOBILE USA, INC. | 6529 | CANOGAPARK | CA |
| 2023-12-15 | 730-230 | T-MOBILE USA, INC. | 6529 | ALTON | IL |
| 2023-12-13 | 219-350 | T-MOBILE USA, INC. | 6529 | PORTAGE | IN |
| 2023-12-07 | 840-249 | T-MOBILE USA, INC. | 6529 | MARSHALL | CA |
| 2023-12-07 | 971-477 | T-MOBILE USA, INC. | 6529 | BEAVERTON | OR |
| 2023-12-06 | 725-318 | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2023-12-05 | 279-249 | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2023-12-05 | 515-672 | T-MOBILE USA, INC. | 6529 | DES MOINES | IA |
| 2023-12-05 | 657-710 | T-MOBILE USA, INC. | 6529 | GARDEN GRV | CA |
| 2023-12-05 | 840-248 | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2023-12-05 | 971-476 | T-MOBILE USA, INC. | 6529 | CLACKAMAS | OR |
| 2023-12-04 | 279-248 | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2023-12-04 | 657-709 | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2023-12-04 | 951-705 | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2023-12-04 | 951-706 | T-MOBILE USA, INC. | 6529 | WOODCREST | CA |
| 2023-12-04 | 951-709 | T-MOBILE USA, INC. | 6529 | MURRIETA | CA |
| 2023-12-04 | 971-474 | T-MOBILE USA, INC. | 6529 | WOODBURN | OR |
| 2023-12-04 | 971-475 | T-MOBILE USA, INC. | 6529 | SEASIDE | OR |
| 2023-12-01 | 307-428 | T-MOBILE USA, INC. | 6529 | DOUGLAS | WY |
| 2023-11-30 | 385-560 | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2023-11-22 | 213-759 | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2023-11-20 | 206-608 | T-MOBILE USA, INC. | 6529 | RICHMNDBCH | WA |
| 2023-11-14 | 681-518 | T-MOBILE USA, INC. | 6529 | CHRLSTNZN3 | WV |
| 2023-11-09 | 520-701 | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2023-11-09 | 669-335 | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-11-08 | 341-242 | T-MOBILE USA, INC. | 6529 | RICHMOND | 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.