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
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 760-310 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA | |
| 760-311 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 760-312 | PACIFIC BELL | 9740 | EL CENTRO | CA | |
| 760-314 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | EL MIRAGE | CA | |
| 760-315 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RAMONA | CA | |
| 760-316 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WRIGHTWOOD | CA | |
| 760-317 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | ESCONDIDO | CA | |
| 760-318 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-320 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-321 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-322 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-323 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-324 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-325 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-326 | CITIZENS TELECOMM DBA FRONTIER COMM GOLDEN STATE | 3402 | NEEDLES | CA | |
| 760-327 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-328 | FRONTIER CALIFORNIA INC. | 2319 | PALM SPG | CA | |
| 760-329 | FRONTIER CALIFORNIA INC. | 2319 | DSERTHTSPG | CA | |
| 760-331 | AT&T - LOCAL | 7421 | OCSD CRLS | CA | |
| 760-332 | BANDWIDTH.COM CLEC, LLC - CA | 981E | EL CENTRO | CA | |
| 760-333 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA | |
| 760-334 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ENCINITAS | CA | |
| 760-335 | PACIFIC BELL | 9740 | EL CENTRO | CA | |
| 760-336 | PACIFIC BELL | 9740 | EL CENTRO | CA | |
| 760-337 | PACIFIC BELL | 9740 | EL CENTRO | CA | |
| 760-339 | PACIFIC BELL | 9740 | EL CENTRO | CA | |
| 760-340 | FRONTIER CALIFORNIA INC. | 2319 | PALMDESERT | CA | |
| 760-341 | FRONTIER CALIFORNIA INC. | 2319 | PALMDESERT | CA | |
| 760-342 | FRONTIER CALIFORNIA INC. | 2319 | INDIO | CA | |
| 760-343 | FRONTIER CALIFORNIA INC. | 2319 | PALMDESERT | CA | |
| 760-344 | PACIFIC BELL | 9740 | BRAWLEY | CA | |
| 760-345 | FRONTIER CALIFORNIA INC. | 2319 | PALMDESERT | CA | |
| 760-346 | FRONTIER CALIFORNIA INC. | 2319 | PALMDESERT | CA | |
| 760-347 | FRONTIER CALIFORNIA INC. | 2319 | INDIO | CA | |
| 760-348 | PACIFIC BELL | 9740 | CALIPATRIA | CA | |
| 760-349 | FRONTIER CALIFORNIA INC. | 2319 | PINYON | CA | |
| 760-350 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | KERNVILLE | CA | |
| 760-351 | PACIFIC BELL | 9740 | BRAWLEY | CA | |
| 760-352 | PACIFIC BELL | 9740 | EL CENTRO | CA | |
| 760-353 | PACIFIC BELL | 9740 | EL CENTRO | CA | |
| 760-354 | PACIFIC BELL | 9740 | CALIPATRIA | CA | |
| 760-355 | PACIFIC BELL | 9740 | IMPERIAL | CA | |
| 760-356 | PACIFIC BELL | 9740 | HOLTVILLE | CA | |
| 760-357 | PACIFIC BELL | 9740 | CALEXICO | CA | |
| 760-358 | PACIFIC BELL | 9740 | OCOTILLO | CA | |
| 760-359 | PACIFIC BELL | 9740 | CALIPATRIA | CA | |
| 760-360 | FRONTIER CALIFORNIA INC. | 2319 | PALMDESERT | CA | |
| 760-361 | FRONTIER CALIFORNIA INC. | 2319 | TWNTYNPLMS | CA | |
| 760-362 | FRONTIER CALIFORNIA INC. | 2319 | TWNTYNPLMS | CA | |
| 760-363 | FRONTIER CALIFORNIA INC. | 2319 | MORONGOVLY | 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.