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
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2015-04-13 | 626-620 | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2015-04-13 | 747-246 | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA |
| 2015-04-13 | 951-464 | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2015-04-10 | 213-331 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA |
| 2015-04-10 | 213-343 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA |
| 2015-04-10 | 213-354 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA |
| 2015-04-09 | 915-706 | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-07 | 520-635 | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2015-04-03 | 440-472 | T-MOBILE USA, INC. | 6529 | BEREA | OH |
| 2015-04-01 | 209-270 | T-MOBILE USA, INC. | 6529 | LOS BANOS | CA |
| 2015-04-01 | 209-302 | T-MOBILE USA, INC. | 6529 | MANTECA | CA |
| 2015-04-01 | 209-453 | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2015-04-01 | 619-394 | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2015-04-01 | 626-361 | T-MOBILE USA, INC. | 6529 | EL MONTE | CA |
| 2015-04-01 | 747-230 | T-MOBILE USA, INC. | 6529 | CANOGAPARK | CA |
| 2015-04-01 | 909-683 | T-MOBILE USA, INC. | 6529 | MARSHALL | CA |
| 2015-04-01 | 909-687 | T-MOBILE USA, INC. | 6529 | ONTARIO | CA |
| 2015-03-27 | 480-616 | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2015-03-27 | 623-296 | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2015-03-20 | 951-772 | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2015-03-17 | 747-243 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA |
| 2015-03-17 | 916-693 | T-MOBILE USA, INC. | 6529 | FOLSOM | CA |
| 2015-03-13 | 209-445 | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2015-03-13 | 442-284 | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2015-03-13 | 562-348 | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2015-03-13 | 650-660 | T-MOBILE USA, INC. | 6529 | HALFMOONBY | CA |
| 2015-03-13 | 747-241 | T-MOBILE USA, INC. | 6529 | BRBN BRBN | CA |
| 2015-03-13 | 909-681 | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2015-03-12 | 206-822 | T-MOBILE USA, INC. | 6529 | BAINBDG IS | WA |
| 2015-03-11 | 213-357 | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2015-03-11 | 510-934 | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2015-03-11 | 559-722 | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-11 | 602-394 | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2015-03-11 | 626-362 | T-MOBILE USA, INC. | 6529 | LA PUENTE | CA |
| 2015-03-11 | 858-262 | T-MOBILE USA, INC. | 6529 | SNDG LVTA | CA |
| 2015-03-11 | 916-695 | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-03-11 | 951-447 | T-MOBILE USA, INC. | 6529 | MURRIETA | CA |
| 2015-03-10 | 708-981 | T-MOBILE USA, INC. | 6529 | ORLAND | IL |
| 2015-03-09 | 209-427 | T-MOBILE USA, INC. | 6529 | TURLOCK | CA |
| 2015-03-09 | 323-847 | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2015-03-09 | 405-965 | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2015-03-09 | 424-391 | T-MOBILE USA, INC. | 6529 | HAWTHORNE | CA |
| 2015-03-09 | 424-396 | T-MOBILE USA, INC. | 6529 | CMTN GRDN | CA |
| 2015-03-09 | 442-273 | T-MOBILE USA, INC. | 6529 | VISTA | CA |
| 2015-03-09 | 559-563 | T-MOBILE USA, INC. | 6529 | VISALIA | CA |
| 2015-03-09 | 661-421 | T-MOBILE USA, INC. | 6529 | BKFD MAIN | CA |
| 2015-03-09 | 714-949 | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2015-03-09 | 951-438 | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2015-03-09 | 951-448 | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2015-03-09 | 951-463 | T-MOBILE USA, INC. | 6529 | CORONA | 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.