NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 920-273 | PAETEC ITEL, LLC | 829J | FONDDU LAC | WI | |
| 920-275 | SPOK, INC. | 6630 | APPLETON | WI | |
| 920-278 | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | DE PERE | WI | |
| 920-279 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | OSHKOSH | WI | |
| 920-281 | TDS METROCOM, LLC | 520K | APPLETON | WI | |
| 920-285 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WATERTOWN | WI | |
| 920-286 | UNITED STATES CELLULAR - WI | 6274 | KIEL | WI | |
| 920-287 | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | SHEBOYGAN | WI | |
| 920-290 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BERLIN | WI | |
| 920-291 | UNITED STATES CELLULAR - WI | 6274 | PRINCETON | WI | |
| 920-292 | TDS METROCOM, LLC | 520K | OSHKOSH | WI | |
| 920-293 | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | NESHKORO | WI | |
| 920-294 | BRIGHTSPEED OF NORTH CENTRAL WISCONSIN, LLC | 0924 | GREEN LAKE | WI | |
| 920-295 | BRIGHTSPEED OF NORTH CENTRAL WISCONSIN, LLC | 0924 | PRINCETON | WI | |
| 920-296 | UNITED STATES CELLULAR - WI | 6274 | BEAVER DAM | WI | |
| 920-297 | T-MOBILE USA, INC. | 6529 | LAKE MILLS | WI | |
| 920-298 | NEW CELL DBA CELLCOM | 6692 | TWO RIVERS | WI | |
| 920-299 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREEN LAKE | WI | |
| 920-302 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | WAUPUN | WI | |
| 920-303 | WISCONSIN BELL INC | 9327 | OSHKOSH | WI | |
| 920-304 | UNITED STATES CELLULAR - WI | 6274 | KEWAUNEE | WI | |
| 920-305 | ONVOY, LLC - WI | 225C | GREEN BAY | WI | |
| 920-306 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | BEAVER DAM | WI | |
| 920-309 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | DE PERE | WI | |
| 920-311 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | WI | |
| 920-312 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | OSHKOSH | WI | |
| 920-317 | AMERICAN MESSAGING SERVICES, LLC | 9748 | BEAVER DAM | WI | |
| 920-318 | T-MOBILE USA, INC. | 6529 | BEAVER DAM | WI | |
| 920-319 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BEAVER DAM | WI | |
| 920-320 | WISCONSIN BELL INC | 9327 | MANITOWOC | WI | |
| 920-321 | PAETEC ITEL, LLC | 829J | GREEN BAY | WI | |
| 920-322 | TDS METROCOM, LLC | 520K | FONDDU LAC | WI | |
| 920-323 | NEW CELL DBA CELLCOM | 6692 | MANITOWOC | WI | |
| 920-324 | WISCONSIN BELL INC | 9327 | WAUPUN | WI | |
| 920-326 | BRIGHTSPEED OF SOUTHERN WISCONSIN, LLC | 0931 | RANDOLPH | WI | |
| 920-328 | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | GREEN BAY | WI | |
| 920-329 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREEN LAKE | WI | |
| 920-330 | WISCONSIN BELL INC | 9327 | DE PERE | WI | |
| 920-331 | METROPCS, INC. | 5562 | SHEBOYGAN | WI | |
| 920-332 | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | BRANDON | WI | |
| 920-334 | NEW CELL DBA CELLCOM | 6692 | SHEBOYGAN | WI | |
| 920-335 | ONVOY, LLC - WI | 225C | SHEBOGNFLS | WI | |
| 920-336 | WISCONSIN BELL INC | 9327 | DE PERE | WI | |
| 920-337 | WISCONSIN BELL INC | 9327 | DE PERE | WI | |
| 920-338 | WISCONSIN BELL INC | 9327 | DE PERE | WI | |
| 920-339 | WISCONSIN BELL INC | 9327 | DE PERE | WI | |
| 920-345 | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | WAUPUN | WI | |
| 920-346 | BRIGHTSPEED OF EASTERN WISCONSIN, LLC | 0877 | BRANDON | WI | |
| 920-347 | TDS METROCOM, LLC | 520K | DE PERE | WI | |
| 920-348 | BRIGHTSPEED OF SOUTHERN WISCONSIN, LLC | 0931 | CAMBRIA | WI |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.