NumberResearchRecent prefix assignments
5 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
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 |
|---|---|---|---|---|---|
| 2015-03-06 | 920-939 | T-MOBILE USA, INC. | 6529 | APPLETON | WI |
| 2015-03-04 | 559-727 | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-04 | 916-578 | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-02-24 | 216-612 | T-MOBILE USA, INC. | 6529 | CLEVELAND | OH |
| 2015-02-24 | 323-794 | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-02-24 | 424-386 | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-02-24 | 424-395 | T-MOBILE USA, INC. | 6529 | MALIBU | CA |
| 2015-02-24 | 916-664 | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-02-23 | 505-297 | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2015-02-23 | 714-909 | T-MOBILE USA, INC. | 6529 | SILVERADO | CA |
| 2015-02-23 | 818-818 | T-MOBILE USA, INC. | 6529 | NORTHRIDGE | CA |
| 2015-02-23 | 909-671 | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2015-02-20 | 224-517 | T-MOBILE USA, INC. | 6529 | BARRINGTON | IL |
| 2015-02-20 | 224-716 | T-MOBILE USA, INC. | 6529 | ALGONQUIN | IL |
| 2015-02-20 | 331-304 | T-MOBILE USA, INC. | 6529 | BARTLETT | IL |
| 2015-02-18 | 858-261 | T-MOBILE USA, INC. | 6529 | DEL MAR | CA |
| 2015-02-18 | 951-462 | T-MOBILE USA, INC. | 6529 | RIVERSIDE | CA |
| 2015-02-09 | 323-926 | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-02-09 | 618-419 | T-MOBILE USA, INC. | 6529 | GRANITE CY | IL |
| 2015-02-06 | 323-740 | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-02-06 | 818-619 | T-MOBILE USA, INC. | 6529 | SNFN PACM | CA |
| 2015-02-05 | 414-210 | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-02-03 | 323-561 | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 559-545 | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2015-02-03 | 626-365 | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2015-02-03 | 818-747 | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2015-01-28 | 702-937 | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2015-01-27 | 626-342 | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2015-01-23 | 424-387 | T-MOBILE USA, INC. | 6529 | SNMN SNMN | CA |
| 2015-01-23 | 562-336 | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-01-23 | 619-635 | T-MOBILE USA, INC. | 6529 | EL CAJON | CA |
| 2015-01-22 | 505-585 | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2015-01-21 | 224-518 | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2015-01-21 | 385-625 | T-MOBILE USA, INC. | 6529 | PROVO | UT |
| 2015-01-20 | 209-421 | T-MOBILE USA, INC. | 6529 | MERCED | CA |
| 2015-01-20 | 424-385 | T-MOBILE USA, INC. | 6529 | CULVERCITY | CA |
| 2015-01-16 | 562-241 | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-01-13 | 208-809 | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-01-13 | 619-636 | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-01-13 | 669-251 | T-MOBILE USA, INC. | 6529 | CAMPBELL | CA |
| 2015-01-13 | 818-213 | T-MOBILE USA, INC. | 6529 | RESEDA | CA |
| 2015-01-13 | 909-682 | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2015-01-12 | 559-668 | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-01-12 | 949-524 | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2015-01-12 | 951-456 | T-MOBILE USA, INC. | 6529 | MIRA LOMA | CA |
| 2015-01-08 | 224-516 | T-MOBILE USA, INC. | 6529 | LAKEFOREST | IL |
| 2015-01-02 | 520-965 | T-MOBILE USA, INC. | 6529 | TUCSON | AZ |
| 2014-12-30 | 424-393 | T-MOBILE USA, INC. | 6529 | INGLEWOOD | CA |
| 2014-12-23 | 909-656 | T-MOBILE USA, INC. | 6529 | CLAREMONT | CA |
| 2014-12-22 | 661-488 | T-MOBILE USA, INC. | 6529 | LANCASTER | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.