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 |
|---|---|---|---|---|---|
| 920-618 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SURING | WI | |
| 920-619 | NEW CELL DBA CELLCOM | 6692 | GREEN BAY | WI | |
| 920-620 | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | KINGSTON | WI | |
| 920-621 | NEW CELL DBA CELLCOM | 6692 | GREEN BAY | WI | |
| 920-622 | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | WILD ROSE | WI | |
| 920-623 | WISCONSIN BELL INC | 9327 | COLUMBUS | WI | |
| 920-625 | FRONTIER NORTH INC. - WI | 0886 | NEOSHO | WI | |
| 920-626 | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | COLUMBUS | WI | |
| 920-627 | UNITED STATES CELLULAR - WI | 6274 | SHEBOYGAN | WI | |
| 920-629 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MANITOWOC | WI | |
| 920-630 | UNITED STATES CELLULAR - WI | 6274 | COLUMBUS | WI | |
| 920-632 | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | DE PERE | WI | |
| 920-634 | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | GREEN BAY | WI | |
| 920-635 | CENTURYLINK COMMUNICATIONS, LLC | 508J | PLYMOUTH | WI | |
| 920-636 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | APPLETON | WI | |
| 920-637 | UNITED STATES CELLULAR - WI | 6274 | NEENAH | WI | |
| 920-638 | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | FONDDU LAC | WI | |
| 920-639 | NEW CELL DBA CELLCOM | 6692 | GREEN BAY | WI | |
| 920-640 | AMERICAN MESSAGING SERVICES, LLC | 9748 | JEFFERSON | WI | |
| 920-642 | NEW CELL DBA CELLCOM | 6692 | OSHKOSH | WI | |
| 920-645 | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MANITOWOC | WI | |
| 920-648 | FRONTIER NORTH INC. - WI | 0886 | LAKE MILLS | WI | |
| 920-650 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JEFFERSON | WI | |
| 920-651 | TDS METROCOM, LLC | 520K | OSHKOSH | WI | |
| 920-652 | WISCONSIN BELL INC | 9327 | MANITOWOC | WI | |
| 920-655 | NEW CELL DBA CELLCOM | 6692 | GREEN BAY | WI | |
| 920-658 | ONVOY, LLC - WI | 225C | OMRO | WI | |
| 920-660 | NEW CELL DBA CELLCOM | 6692 | GREEN BAY | WI | |
| 920-661 | WISCONSIN BELL INC | 9327 | GREEN BAY | WI | |
| 920-662 | WISCONSIN BELL INC | 9327 | GREEN BAY | WI | |
| 920-663 | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | MANITOWOC | WI | |
| 920-664 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREEN BAY | WI | |
| 920-665 | SPOK, INC. | 6630 | GREEN BAY | WI | |
| 920-667 | BRIGHTSPEED OF EAST CENTRAL WISCONSIN, LLC | 0898 | READFIELD | WI | |
| 920-668 | FRONTIER NORTH INC. - WI | 0886 | CEDARGROVE | WI | |
| 920-671 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OCONTO FLS | WI | |
| 920-672 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LENA | WI | |
| 920-674 | WISCONSIN BELL INC | 9327 | JEFFERSON | WI | |
| 920-675 | WISCONSIN BELL INC | 9327 | JEFFERSON | WI | |
| 920-676 | NEW CELL DBA CELLCOM | 6692 | GREEN BAY | WI | |
| 920-680 | NEW CELL DBA CELLCOM | 6692 | GREEN BAY | WI | |
| 920-681 | T-MOBILE USA, INC. | 6529 | MANITOWOC | WI | |
| 920-682 | WISCONSIN BELL INC | 9327 | MANITOWOC | WI | |
| 920-683 | WISCONSIN BELL INC | 9327 | MANITOWOC | WI | |
| 920-684 | WISCONSIN BELL INC | 9327 | MANITOWOC | WI | |
| 920-685 | WISCONSIN BELL INC | 9327 | OMRO | WI | |
| 920-686 | WISCONSIN BELL INC | 9327 | MANITOWOC | WI | |
| 920-687 | WISCONSIN BELL INC | 9327 | LTL CHUTE | WI | |
| 920-688 | WISCONSIN BELL INC | 9327 | VAN DYNE | WI | |
| 920-689 | WISCONSIN BELL INC | 9327 | BURNETT | 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.