NumberResearchRecent prefix assignments
352 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
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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Dec 2025
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 209-790 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | IONE | CA | |
| 209-791 | BANDWIDTH.COM CLEC, LLC - CA | 981E | MOKELUMNHL | CA | |
| 209-794 | PACIFIC BELL | 9740 | THORNTON | CA | |
| 209-795 | PACIFIC BELL | 9740 | ANGELSCAMP | CA | |
| 209-796 | ONVOY, LLC - CA | 649C | THORNTON | CA | |
| 209-797 | ONVOY, LLC - CA | 649C | LOCKEFORD | CA | |
| 209-800 | BANDWIDTH.COM CLEC, LLC - CA | 981E | STOCKTON | CA | |
| 209-803 | IP HORIZON LLC | 515J | NEWMAN | CA | |
| 209-805 | ONVOY, LLC - CA | 649C | CROWS LDG | CA | |
| 209-806 | BANDWIDTH.COM CLEC, LLC - CA | 981E | MOKELUMNHL | CA | |
| 209-808 | PACIFIC BELL | 9740 | STOCKTON | CA | |
| 209-810 | METROPCS, INC. | 5562 | LODI | CA | |
| 209-811 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 209-812 | T-MOBILE USA, INC. | 6529 | ATWATER | CA | |
| 209-814 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TRACY | CA | |
| 209-815 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MANTECA | CA | |
| 209-817 | PACIFIC BELL | 9740 | STOCKTON | CA | |
| 209-818 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | MODESTO | CA | |
| 209-820 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | TRACY | CA | |
| 209-821 | ONVOY, LLC - CA | 649C | ESCALON | CA | |
| 209-823 | FRONTIER CALIFORNIA INC. | 4420 | MANTECA | CA | |
| 209-824 | FRONTIER CALIFORNIA INC. | 4420 | MANTECA | CA | |
| 209-825 | FRONTIER CALIFORNIA INC. | 4420 | MANTECA | CA | |
| 209-826 | PACIFIC BELL | 9740 | LOS BANOS | CA | |
| 209-827 | PACIFIC BELL | 9740 | LOS BANOS | CA | |
| 209-828 | ONVOY, LLC - CA | 649C | LOS BANOS | CA | |
| 209-829 | PACIFIC BELL | 9740 | LOS BANOS | CA | |
| 209-830 | PACIFIC BELL | 9740 | TRACY | CA | |
| 209-831 | PACIFIC BELL | 9740 | TRACY | CA | |
| 209-832 | PACIFIC BELL | 9740 | TRACY | CA | |
| 209-833 | PACIFIC BELL | 9740 | TRACY | CA | |
| 209-834 | PACIFIC BELL | 9740 | TRACY | CA | |
| 209-835 | PACIFIC BELL | 9740 | TRACY | CA | |
| 209-836 | PACIFIC BELL | 9740 | TRACY | CA | |
| 209-837 | PACIFIC BELL | 9740 | CROWS LDG | CA | |
| 209-838 | PACIFIC BELL | 9740 | ESCALON | CA | |
| 209-839 | PACIFIC BELL | 9740 | TRACY | CA | |
| 209-840 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OAKDALE | CA | |
| 209-841 | IP HORIZON LLC | 515J | OAKDALE | CA | |
| 209-842 | IP HORIZON LLC | 515J | PINECREST | CA | |
| 209-844 | ONVOY, LLC - CA | 649C | OAKDALE | CA | |
| 209-845 | PACIFIC BELL | 9740 | OAKDALE | CA | |
| 209-847 | PACIFIC BELL | 9740 | OAKDALE | CA | |
| 209-848 | PACIFIC BELL | 9740 | OAKDALE | CA | |
| 209-852 | PACIFIC BELL | 9740 | WTFR DNPR | CA | |
| 209-853 | PACIFIC BELL | 9740 | WTFR MAIN | CA | |
| 209-854 | PACIFIC BELL | 9740 | GUSTINE | CA | |
| 209-856 | ONVOY, LLC - CA | 649C | CROWS LDG | CA | |
| 209-858 | FRONTIER CALIFORNIA INC. | 4420 | MANTECA | CA | |
| 209-861 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.