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
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 254-371 | T-MOBILE USA, INC. | 6529 | COPPERASCV | TX | |
| 254-421 | T-MOBILE USA, INC. | 6529 | TEMPLE | TX | |
| 254-426 | T-MOBILE USA, INC. | 6529 | MARLIN | TX | |
| 254-458 | T-MOBILE USA, INC. | 6529 | KILLEEN | TX | |
| 254-462 | T-MOBILE USA, INC. | 6529 | KILLEEN | TX | |
| 254-535 | T-MOBILE USA, INC. | 6529 | KILLEEN | TX | |
| 254-592 | T-MOBILE USA, INC. | 6529 | STEPHENVL | TX | |
| 254-624 | T-MOBILE USA, INC. | 6529 | TEMPLE | TX | |
| 262-269 | T-MOBILE USA, INC. | 6529 | OCONOMOWOC | WI | |
| 262-271 | T-MOBILE USA, INC. | 6529 | WAUKESHA | WI | |
| 262-327 | T-MOBILE USA, INC. | 6529 | MILWAUKZN2 | WI | |
| 262-332 | T-MOBILE USA, INC. | 6529 | WATERFORD | WI | |
| 262-391 | T-MOBILE USA, INC. | 6529 | WAUKESHA | WI | |
| 262-412 | T-MOBILE USA, INC. | 6529 | RACINE | WI | |
| 262-434 | T-MOBILE USA, INC. | 6529 | OCONOMOWOC | WI | |
| 262-510 | T-MOBILE USA, INC. | 6529 | WAUKESHA | WI | |
| 262-613 | T-MOBILE USA, INC. | 6529 | WAUKESHA | WI | |
| 262-620 | T-MOBILE USA, INC. | 6529 | KENOSHA | WI | |
| 262-627 | T-MOBILE USA, INC. | 6529 | SLINGER | WI | |
| 262-716 | T-MOBILE USA, INC. | 6529 | BURLINGTON | WI | |
| 262-744 | T-MOBILE USA, INC. | 6529 | ALLENTON | WI | |
| 262-745 | T-MOBILE USA, INC. | 6529 | LAKEGENEVA | WI | |
| 262-749 | T-MOBILE USA, INC. | 6529 | DELAVAN | WI | |
| 262-751 | T-MOBILE USA, INC. | 6529 | WAUKESHA | WI | |
| 262-770 | T-MOBILE USA, INC. | 6529 | RACINE | WI | |
| 262-813 | T-MOBILE USA, INC. | 6529 | PALMYRA | WI | |
| 262-865 | T-MOBILE USA, INC. | 6529 | RACINE | WI | |
| 262-873 | T-MOBILE USA, INC. | 6529 | WAUBEKA | WI | |
| 262-880 | T-MOBILE USA, INC. | 6529 | RACINE | WI | |
| 262-893 | T-MOBILE USA, INC. | 6529 | WAUKESHA | WI | |
| 279-210 | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA | |
| 303-210 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-246 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-257 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-332 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-356 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-359 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-419 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-434 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-435 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-437 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-472 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-507 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-520 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-521 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-522 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-523 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-525 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-564 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-587 | T-MOBILE USA, INC. | 6529 | DENVER | CO |
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.