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
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2025-01-22 | 274-209 | T-MOBILE USA, INC. | 6529 | OMRO | WI |
| 2025-01-22 | 608-953 | T-MOBILE USA, INC. | 6529 | LANCASTER | WI |
| 2025-01-22 | 608-954 | T-MOBILE USA, INC. | 6529 | MUSCODA | WI |
| 2025-01-21 | 608-951 | T-MOBILE USA, INC. | 6529 | GALESVILLE | WI |
| 2025-01-21 | 608-952 | T-MOBILE USA, INC. | 6529 | HOLMEN | WI |
| 2025-01-16 | 262-471 | T-MOBILE USA, INC. | 6529 | ELKHORN | WI |
| 2025-01-16 | 274-205 | T-MOBILE USA, INC. | 6529 | COLUMBUS | WI |
| 2025-01-16 | 534-235 | T-MOBILE USA, INC. | 6529 | CLINTONVL | WI |
| 2025-01-15 | 274-203 | T-MOBILE USA, INC. | 6529 | ALGOMA | WI |
| 2025-01-15 | 940-379 | T-MOBILE USA, INC. | 6529 | KIRKLAND | TX |
| 2025-01-15 | 940-385 | T-MOBILE USA, INC. | 6529 | LAKE KEMP | TX |
| 2025-01-15 | 940-388 | T-MOBILE USA, INC. | 6529 | GOODLETT | TX |
| 2025-01-15 | 940-396 | T-MOBILE USA, INC. | 6529 | TRUSCOTT | TX |
| 2025-01-15 | 940-404 | T-MOBILE USA, INC. | 6529 | WHCY ODELL | TX |
| 2025-01-15 | 945-367 | T-MOBILE USA, INC. | 6529 | IRVING | TX |
| 2025-01-09 | 206-807 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2025-01-07 | 224-631 | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-01-07 | 309-969 | T-MOBILE USA, INC. | 6529 | MOLINE | IL |
| 2025-01-07 | 669-362 | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2024-12-16 | 808-788 | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| 2024-12-16 | 820-237 | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-12-06 | 350-236 | T-MOBILE USA, INC. | 6529 | JAMESTOWN | CA |
| 2024-12-06 | 657-776 | T-MOBILE USA, INC. | 6529 | ANAHEIM | CA |
| 2024-12-03 | 737-405 | T-MOBILE USA, INC. | 6529 | KYLE | TX |
| 2024-12-03 | 945-360 | T-MOBILE USA, INC. | 6529 | IRVING | TX |
| 2024-11-19 | 945-358 | T-MOBILE USA, INC. | 6529 | IRVING | TX |
| 2024-11-14 | 341-259 | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2024-11-13 | 213-930 | T-MOBILE USA, INC. | 6529 | LSAN DA 04 | CA |
| 2024-11-13 | 213-931 | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2024-11-13 | 213-934 | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2024-11-12 | 274-201 | T-MOBILE USA, INC. | 6529 | NEW LONDON | WI |
| 2024-11-11 | 254-586 | T-MOBILE USA, INC. | 6529 | MARLIN | TX |
| 2024-11-08 | 424-520 | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2024-11-08 | 442-442 | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2024-11-08 | 562-510 | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2024-11-07 | 657-774 | T-MOBILE USA, INC. | 6529 | ORANGE | CA |
| 2024-11-07 | 820-235 | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2024-11-01 | 206-843 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2024-10-24 | 505-638 | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2024-10-23 | 369-223 | T-MOBILE USA, INC. | 6529 | BENICIA | CA |
| 2024-10-23 | 949-847 | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2024-10-21 | 213-882 | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2024-10-21 | 213-902 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA |
| 2024-10-21 | 254-941 | T-MOBILE USA, INC. | 6529 | CAMERON | TX |
| 2024-10-21 | 350-233 | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-10-21 | 562-649 | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2024-10-21 | 657-773 | T-MOBILE USA, INC. | 6529 | HUNTITNBCH | CA |
| 2024-10-21 | 669-360 | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2024-10-14 | 737-399 | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2024-10-11 | 253-417 | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
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.