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
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 |
|---|---|---|---|---|---|
| 760-364 | FRONTIER CALIFORNIA INC. | 2319 | HOMESTDVLY | CA | |
| 760-365 | FRONTIER CALIFORNIA INC. | 2319 | YUCCA VLY | CA | |
| 760-366 | FRONTIER CALIFORNIA INC. | 2319 | JOSHUATREE | CA | |
| 760-367 | FRONTIER CALIFORNIA INC. | 2319 | TWNTYNPLMS | CA | |
| 760-368 | FRONTIER CALIFORNIA INC. | 2319 | TWNTYNPLMS | CA | |
| 760-369 | FRONTIER CALIFORNIA INC. | 2319 | YUCCA VLY | CA | |
| 760-370 | PACIFIC BELL | 9740 | EL CENTRO | CA | |
| 760-371 | FRONTIER CALIFORNIA INC. | 4420 | RIDGECREST | CA | |
| 760-372 | FRONTIER CALIFORNIA INC. | 4420 | TRONA | CA | |
| 760-373 | FRONTIER CALIFORNIA INC. | 4420 | CALIFORNCY | CA | |
| 760-374 | FRONTIER CALIFORNIA INC. | 4420 | RANDSBURG | CA | |
| 760-375 | FRONTIER CALIFORNIA INC. | 4420 | RIDGECREST | CA | |
| 760-376 | FRONTIER CALIFORNIA INC. | 4420 | KERNVILLE | CA | |
| 760-377 | FRONTIER CALIFORNIA INC. | 4420 | INYOKERN | CA | |
| 760-378 | FRONTIER CALIFORNIA INC. | 4420 | WELDON | CA | |
| 760-379 | FRONTIER CALIFORNIA INC. | 4420 | LKISABELLA | CA | |
| 760-380 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | FORT IRWIN | CA | |
| 760-381 | FRONTIER CALIFORNIA INC. | 4420 | VICTORVL | CA | |
| 760-382 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIDGECREST | CA | |
| 760-383 | FRONTIER CALIFORNIA INC. | 4420 | FORT IRWIN | CA | |
| 760-384 | FRONTIER CALIFORNIA INC. | 4420 | RIDGECREST | CA | |
| 760-385 | PACIFIC BELL | 9740 | OCSD PDTN | CA | |
| 760-386 | FRONTIER CALIFORNIA INC. | 4420 | FORT IRWIN | CA | |
| 760-387 | FRONTIER CALIFORNIA INC. | 4420 | PINE CREEK | CA | |
| 760-388 | FRONTIER CALIFORNIA INC. | 4420 | EL MIRAGE | CA | |
| 760-389 | FRONTIER CALIFORNIA INC. | 4420 | SUMMIT VLY | CA | |
| 760-391 | FRONTIER CALIFORNIA INC. | 2319 | INDIO | CA | |
| 760-392 | FRONTIER CALIFORNIA INC. | 2319 | EAGLE MT | CA | |
| 760-393 | FRONTIER CALIFORNIA INC. | 2319 | INDIO | CA | |
| 760-394 | FRONTIER CALIFORNIA INC. | 2319 | SALTON | CA | |
| 760-395 | FRONTIER CALIFORNIA INC. | 2319 | SALTON | CA | |
| 760-396 | FRONTIER CALIFORNIA INC. | 2319 | INDIO | CA | |
| 760-397 | FRONTIER CALIFORNIA INC. | 2319 | INDIO | CA | |
| 760-398 | FRONTIER CALIFORNIA INC. | 2319 | INDIO | CA | |
| 760-399 | FRONTIER CALIFORNIA INC. | 2319 | INDIO | CA | |
| 760-400 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | OCSD OCSD | CA | |
| 760-402 | T-MOBILE USA, INC. | 6529 | ENCINITAS | CA | |
| 760-405 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OCSD OCSD | CA | |
| 760-406 | ONVOY, LLC - CA | 649C | PALM SPG | CA | |
| 760-407 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | VISTA | CA | |
| 760-409 | T-MOBILE USA, INC. | 6529 | PALM SPG | CA | |
| 760-410 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SAN MARCOS | CA | |
| 760-411 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 760-412 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BRAWLEY | CA | |
| 760-414 | PACIFIC BELL | 9740 | VISTA | CA | |
| 760-415 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA | |
| 760-416 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-418 | ONVOY, LLC - CA | 649C | YUCCA VLY | CA | |
| 760-419 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA | |
| 760-420 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA |
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.