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
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2024-06-25 | 442-467 | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-06-25 | 458-329 | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2024-06-25 | 779-403 | T-MOBILE USA, INC. | 6529 | MCHENRY | IL |
| 2024-06-21 | 213-834 | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2024-06-21 | 213-982 | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2024-06-21 | 626-781 | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2024-06-21 | 657-825 | T-MOBILE USA, INC. | 6529 | ANAHEIM | CA |
| 2024-06-21 | 747-369 | T-MOBILE USA, INC. | 6529 | CANOGAPARK | CA |
| 2024-06-21 | 808-767 | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2024-06-21 | 818-690 | T-MOBILE USA, INC. | 6529 | BRBN SNVY | CA |
| 2024-06-21 | 909-840 | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2024-06-21 | 925-539 | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-06-21 | 971-490 | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2024-06-21 | 986-283 | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2024-06-12 | 385-581 | T-MOBILE USA, INC. | 6529 | SALT LAKE | UT |
| 2024-06-10 | 725-336 | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2024-06-08 | 509-617 | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2024-06-07 | 539-307 | T-MOBILE USA, INC. | 6529 | OKMULGEE | OK |
| 2024-06-07 | 572-236 | T-MOBILE USA, INC. | 6529 | CHICKASHA | OK |
| 2024-06-04 | 872-371 | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-05-31 | 213-828 | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2024-05-31 | 213-829 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA |
| 2024-05-31 | 253-413 | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2024-05-31 | 341-252 | T-MOBILE USA, INC. | 6529 | FRNK MAIN | CA |
| 2024-05-31 | 424-513 | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2024-05-31 | 435-360 | T-MOBILE USA, INC. | 6529 | ST GEORGE | UT |
| 2024-05-31 | 442-462 | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2024-05-31 | 510-810 | T-MOBILE USA, INC. | 6529 | OKLD ALMD | CA |
| 2024-05-31 | 562-738 | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2024-05-31 | 626-769 | T-MOBILE USA, INC. | 6529 | AZUSA | CA |
| 2024-05-31 | 628-306 | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-05-31 | 657-714 | T-MOBILE USA, INC. | 6529 | BUENA PARK | CA |
| 2024-05-31 | 657-752 | T-MOBILE USA, INC. | 6529 | ORANGE | CA |
| 2024-05-31 | 669-343 | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2024-05-31 | 747-365 | T-MOBILE USA, INC. | 6529 | NORTHRIDGE | CA |
| 2024-05-31 | 805-661 | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2024-05-31 | 858-902 | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2024-05-30 | 971-488 | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2024-05-23 | 435-328 | T-MOBILE USA, INC. | 6529 | HEBER CITY | UT |
| 2024-05-23 | 970-637 | T-MOBILE USA, INC. | 6529 | DURANGO | CO |
| 2024-05-22 | 213-827 | T-MOBILE USA, INC. | 6529 | LSAN DA 04 | CA |
| 2024-05-22 | 530-981 | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2024-05-22 | 628-305 | T-MOBILE USA, INC. | 6529 | SAN RAFAEL | CA |
| 2024-05-22 | 657-751 | T-MOBILE USA, INC. | 6529 | FULLERTON | CA |
| 2024-05-22 | 840-260 | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2024-05-13 | 725-335 | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2024-05-10 | 213-815 | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2024-05-10 | 213-824 | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2024-05-10 | 424-547 | T-MOBILE USA, INC. | 6529 | INGLEWOOD | CA |
| 2024-05-10 | 562-737 | T-MOBILE USA, INC. | 6529 | LAKEWOOD | 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.