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
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 760-689 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FALLBROOK | CA | |
| 760-690 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ESCONDIDO | CA | |
| 760-695 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | FALLBROOK | CA | |
| 760-696 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | OCSD OCSD | CA | |
| 760-697 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | ENCINITAS | CA | |
| 760-700 | CA | ||||
| 760-704 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ENCINITAS | CA | |
| 760-705 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ESCONDIDO | CA | |
| 760-707 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | OCSD CRLS | CA | |
| 760-708 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ESCONDIDO | CA | |
| 760-710 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | OCSD CRLS | CA | |
| 760-711 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 760-712 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | OCSD OCSD | CA | |
| 760-714 | SPOK, INC. | 6630 | VISTA | CA | |
| 760-715 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ESCONDIDO | CA | |
| 760-716 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA | |
| 760-717 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OCSD OCSD | CA | |
| 760-718 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | BARSTOW | CA | |
| 760-720 | PACIFIC BELL | 9740 | OCSD OCSD | CA | |
| 760-721 | PACIFIC BELL | 9740 | OCSD OCSD | CA | |
| 760-722 | PACIFIC BELL | 9740 | OCSD OCSD | CA | |
| 760-723 | PACIFIC BELL | 9740 | FALLBROOK | CA | |
| 760-724 | PACIFIC BELL | 9740 | VISTA | CA | |
| 760-725 | PACIFIC BELL | 9740 | OCSD PDTN | CA | |
| 760-726 | PACIFIC BELL | 9740 | VISTA | CA | |
| 760-727 | PACIFIC BELL | 9740 | VISTA | CA | |
| 760-728 | PACIFIC BELL | 9740 | FALLBROOK | CA | |
| 760-729 | PACIFIC BELL | 9740 | OCSD OCSD | CA | |
| 760-730 | PACIFIC BELL | 9740 | OCSD OCSD | CA | |
| 760-731 | PACIFIC BELL | 9740 | FALLBROOK | CA | |
| 760-732 | PACIFIC BELL | 9740 | VISTA | CA | |
| 760-733 | PACIFIC BELL | 9740 | BAKER | CA | |
| 760-734 | PACIFIC BELL | 9740 | VISTA | CA | |
| 760-735 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-736 | PACIFIC BELL | 9740 | SAN MARCOS | CA | |
| 760-737 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-738 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-739 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-740 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-741 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-742 | PACIFIC BELL | 9740 | PAUMA VLY | CA | |
| 760-743 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-744 | PACIFIC BELL | 9740 | SAN MARCOS | CA | |
| 760-745 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-746 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-747 | PACIFIC BELL | 9740 | ESCONDIDO | CA | |
| 760-748 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BORREGO | CA | |
| 760-749 | PACIFIC BELL | 9740 | VALLEY CTR | CA | |
| 760-750 | PACIFIC BELL | 9740 | SAN MARCOS | CA | |
| 760-751 | PACIFIC BELL | 9740 | VALLEY CTR | 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.