NumberResearchRecent prefix assignments
366 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
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 |
|---|---|---|---|---|---|
| 2006-07-27 | 202-683 | LEVEL 3 COMMUNICATIONS, LLC - DC | 6117 | WSHNGTNZN1 | DC |
| 2006-07-27 | 202-684 | LEVEL 3 COMMUNICATIONS, LLC - DC | 6117 | WSHNGTNZN1 | DC |
| 2006-07-27 | 254-256 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SALADO | TX |
| 2006-07-27 | 254-589 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | NOLANVILLE | TX |
| 2006-07-27 | 254-661 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | COPPERASCV | TX |
| 2006-07-27 | 254-701 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HILLSBORO | TX |
| 2006-07-27 | 254-708 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | CLIFTON | TX |
| 2006-07-27 | 254-781 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | KILLEEN | TX |
| 2006-07-27 | 254-831 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | BELTON | TX |
| 2006-07-27 | 254-870 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | WACO | TX |
| 2006-07-27 | 254-935 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | TEMPLE | TX |
| 2006-07-27 | 289-297 | ISP Telecom Inc. | 4727 | Port Credit | — |
| 2006-07-27 | 289-444 | ISP Telecom Inc. | 4727 | Cooksville | — |
| 2006-07-27 | 289-548 | ISP Telecom Inc. | 4727 | Malton | — |
| 2006-07-27 | 289-999 | ISP Telecom Inc. | 4727 | Streetsville | — |
| 2006-07-27 | 325-231 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | MERKEL | TX |
| 2006-07-27 | 325-386 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | CLYDE | TX |
| 2006-07-27 | 325-603 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | ABILENE | TX |
| 2006-07-27 | 432-242 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | MIDLAND | TX |
| 2006-07-27 | 432-653 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | ODESSA | TX |
| 2006-07-27 | 563-220 | MCC TELEPHONY OF IOWA, LLC - IA | 751F | SABULA | IA |
| 2006-07-27 | 702-467 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | 6458 | LAS VEGAS | NV |
| 2006-07-27 | 781-699 | VERIZON NEW ENGLAND INC. | 9102 | WALTHAM | MA |
| 2006-07-27 | 806-452 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | CANYON | TX |
| 2006-07-27 | 806-591 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HEREFORD | TX |
| 2006-07-27 | 806-621 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | BORGER | TX |
| 2006-07-27 | 806-731 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | AMARILLO | TX |
| 2006-07-27 | 806-802 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | PAMPA | TX |
| 2006-07-27 | 940-477 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HENRIETTA | TX |
| 2006-07-27 | 940-503 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | BURKBURNTT | TX |
| 2006-07-27 | 940-905 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | IOWA PARK | TX |
| 2006-07-26 | 204-221 | Shaw Telecom Inc. | 497E | Winnipeg | — |
| 2006-07-26 | 207-802 | AT&T - LOCAL | 7421 | DOVERFCRFT | ME |
| 2006-07-26 | 209-846 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | MODESTO | CA |
| 2006-07-26 | 289-299 | ISP Telecom Inc. | 4727 | Clarkson | — |
| 2006-07-26 | 289-476 | ISP Telecom Inc. | 4727 | Fort Erie | — |
| 2006-07-26 | 289-477 | ISP Telecom Inc. | 4727 | Niagara Falls | — |
| 2006-07-26 | 289-478 | ISP Telecom Inc. | 4727 | Port Colborne | — |
| 2006-07-26 | 289-480 | ISP Telecom Inc. | 4727 | Welland | — |
| 2006-07-26 | 403-385 | TELUS | 8084 | Calgary | — |
| 2006-07-26 | 619-684 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG SNDG | CA |
| 2006-07-26 | 714-603 | METROPCS NETWORKS, LLC | 899D | ANAHEIM | CA |
| 2006-07-26 | 724-970 | IDT AMERICA, CORP. - PA | 213C | UNIONTOWN | PA |
| 2006-07-26 | 769-301 | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | LUMBERTON | MS |
| 2006-07-26 | 769-303 | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | BEAUMONT | MS |
| 2006-07-26 | 769-305 | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | MCLAIN | MS |
| 2006-07-26 | 769-307 | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | SUMRALL | MS |
| 2006-07-26 | 773-679 | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2006-07-26 | 909-643 | METROPCS NETWORKS, LLC | 899D | POMONA | CA |
| 2006-07-26 | 909-651 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | REDLANDS | CA |
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.