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 |
|---|---|---|---|---|---|
| 760-248 | FRONTIER CALIFORNIA INC. | 4420 | LUCERNEVLY | CA | |
| 760-249 | FRONTIER CALIFORNIA INC. | 4420 | WRIGHTWOOD | CA | |
| 760-250 | METROPCS NETWORKS, LLC | 899D | PALM SPG | CA | |
| 760-251 | FRONTIER CALIFORNIA INC. | 2319 | DSERTHTSPG | CA | |
| 760-252 | FRONTIER CALIFORNIA INC. | 4420 | BARSTOW | CA | |
| 760-253 | FRONTIER CALIFORNIA INC. | 4420 | LENWOOD | CA | |
| 760-254 | FRONTIER CALIFORNIA INC. | 4420 | BRSW YERM | CA | |
| 760-255 | FRONTIER CALIFORNIA INC. | 4420 | BARSTOW | CA | |
| 760-256 | FRONTIER CALIFORNIA INC. | 4420 | BARSTOW | CA | |
| 760-257 | FRONTIER CALIFORNIA INC. | 4420 | NEWBERRY | CA | |
| 760-258 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BISHOP | CA | |
| 760-259 | ONVOY, LLC - CA | 649C | EL CENTRO | CA | |
| 760-260 | IP HORIZON LLC | 515J | JULIAN | CA | |
| 760-261 | FRONTIER CALIFORNIA INC. | 4420 | VICTORVL | CA | |
| 760-262 | ONVOY, LLC - CA | 649C | INDIO | CA | |
| 760-263 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BIG PINE | CA | |
| 760-264 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LONE PINE | CA | |
| 760-266 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SHOSHONE | CA | |
| 760-269 | FRONTIER CALIFORNIA INC. | 4420 | VICTORVL | CA | |
| 760-273 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | EARP | CA | |
| 760-274 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ENCINITAS | CA | |
| 760-275 | T-MOBILE USA, INC. | 6529 | PALM SPG | CA | |
| 760-276 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PARKER DAM | CA | |
| 760-277 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | OCSD OCSD | CA | |
| 760-278 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BLYTHE | CA | |
| 760-279 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | OLANCHA | CA | |
| 760-280 | ONVOY, LLC - CA | 649C | NEWBERRY | CA | |
| 760-281 | ONVOY, LLC - CA | 649C | WRIGHTWOOD | CA | |
| 760-282 | BANDWIDTH.COM CLEC, LLC - CA | 981E | BARSTOW | CA | |
| 760-283 | UTILITY TELECOM GROUP, LLC - CA | 9262 | OCSD OCSD | CA | |
| 760-284 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CALIFORNCY | CA | |
| 760-285 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PALM SPG | CA | |
| 760-288 | FRONTIER CALIFORNIA INC. | 2319 | DSERTHTSPG | CA | |
| 760-290 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SAN MARCOS | CA | |
| 760-291 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-293 | SPOK, INC. | 6630 | OCSD PDTN | CA | |
| 760-294 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | ESCONDIDO | CA | |
| 760-295 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | VISTA | CA | |
| 760-297 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | VALLEY CTR | CA | |
| 760-299 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WELDON | CA | |
| 760-300 | IP HORIZON LLC | 515J | ESCONDIDO | CA | |
| 760-301 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RIDGECREST | CA | |
| 760-302 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | TRONA | CA | |
| 760-303 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RANDSBURG | CA | |
| 760-304 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | SAN MARCOS | CA | |
| 760-305 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | VISTA | CA | |
| 760-306 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BORON | CA | |
| 760-307 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LENWOOD | CA | |
| 760-308 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BARSTOW | CA | |
| 760-309 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | NEWBERRY | 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.