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 |
|---|---|---|---|---|---|
| 760-482 | PACIFIC BELL | 9740 | EL CENTRO | CA | |
| 760-483 | ONVOY, LLC - CA | 649C | IMPERIAL | CA | |
| 760-484 | AT&T - LOCAL | 7421 | ESCONDIDO | CA | |
| 760-486 | T-MOBILE USA, INC. | 6529 | VICTORVL | CA | |
| 760-487 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | ENCINITAS | CA | |
| 760-488 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VTVL HSPR | CA | |
| 760-489 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-491 | ONVOY, LLC - CA | 649C | BORON | CA | |
| 760-492 | T-MOBILE USA, INC. | 6529 | ENCINITAS | CA | |
| 760-494 | PAETEC ITEL, LLC | 829J | OCSD CRLS | CA | |
| 760-495 | UTILITY TELECOM GROUP, LLC - CA | 9262 | RIDGECREST | CA | |
| 760-496 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | OCSD CRLS | CA | |
| 760-497 | T-MOBILE USA, INC. | 6529 | ESCONDIDO | CA | |
| 760-499 | FRONTIER CALIFORNIA INC. | 4420 | RIDGECREST | CA | |
| 760-500 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA | |
| 760-501 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | INDIO | CA | |
| 760-502 | ONVOY, LLC - CA | 649C | CALIPATRIA | CA | |
| 760-504 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-505 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA | |
| 760-506 | AMERICAN MESSAGING SERVICES, LLC | 6906 | VICTORVL | CA | |
| 760-508 | T-MOBILE USA, INC. | 6529 | VICTORVL | CA | |
| 760-509 | ONVOY, LLC - CA | 649C | VISTA | CA | |
| 760-510 | PACIFIC BELL | 9740 | SAN MARCOS | CA | |
| 760-511 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 760-512 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | OCSD PDTN | CA | |
| 760-513 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VICTORVL | CA | |
| 760-514 | BANDWIDTH.COM CLEC, LLC - CA | 981E | CALIFORNCY | CA | |
| 760-516 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ENCINITAS | CA | |
| 760-517 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OCSD CRLS | CA | |
| 760-518 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA | |
| 760-519 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA | |
| 760-520 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ESCONDIDO | CA | |
| 760-521 | T-MOBILE USA, INC. | 6529 | OCSD OCSD | CA | |
| 760-522 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ESCONDIDO | CA | |
| 760-524 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | VICTORVL | CA | |
| 760-525 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA | |
| 760-526 | 33 WIRELESS INC. | 6967 | OCSD OCSD | CA | |
| 760-527 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | JULIAN | CA | |
| 760-529 | PACIFIC BELL | 9740 | OCSD OCSD | CA | |
| 760-530 | FRONTIER CALIFORNIA INC. | 4420 | VTVL ADLN | CA | |
| 760-531 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | WELDON | CA | |
| 760-532 | T-MOBILE USA, INC. | 6529 | ESCONDIDO | CA | |
| 760-533 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ESCONDIDO | CA | |
| 760-534 | T-MOBILE USA, INC. | 6529 | PALM SPG | CA | |
| 760-535 | METROPCS, INC. | 5562 | ESCONDIDO | CA | |
| 760-536 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | VISTA | CA | |
| 760-538 | CENTURYLINK COMMUNICATIONS, LLC | 508J | SALTON | CA | |
| 760-539 | ONVOY, LLC - CA | 649C | SAN MARCOS | CA | |
| 760-540 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | EL CENTRO | CA | |
| 760-542 | ONVOY, LLC - CA | 649C | 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.