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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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 209-862 | PACIFIC BELL | 9740 | NEWMAN | CA | |
| 209-863 | PACIFIC BELL | 9740 | RIVERBANK | CA | |
| 209-867 | BANDWIDTH.COM CLEC, LLC - CA | 981E | LOCKEFORD | CA | |
| 209-868 | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA | |
| 209-869 | PACIFIC BELL | 9740 | RIVERBANK | CA | |
| 209-870 | UTILITY TELECOM GROUP, LLC - CA | 9262 | STOCKTON | CA | |
| 209-873 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA | |
| 209-874 | PACIFIC BELL | 9740 | WTFR MAIN | CA | |
| 209-877 | BANDWIDTH.COM CLEC, LLC - CA | 981E | PLANADA | CA | |
| 209-878 | PACIFIC BELL | 9740 | COULTERVL | CA | |
| 209-879 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | TRACY | CA | |
| 209-881 | PACIFIC BELL | 9740 | KNIGHTFRRY | CA | |
| 209-882 | ONVOY, LLC - CA | 649C | HUGHSON | CA | |
| 209-883 | PACIFIC BELL | 9740 | HUGHSON | CA | |
| 209-885 | ONVOY, LLC - CA | 649C | MILTON | CA | |
| 209-886 | FRONTIER CALIFORNIA INC. | 4420 | FARMINGTON | CA | |
| 209-887 | FRONTIER CALIFORNIA INC. | 4420 | LINDEN | CA | |
| 209-890 | IP HORIZON LLC | 515J | ANGELSCAMP | CA | |
| 209-892 | GLOBAL VALLEY NETWORKS | 2315 | PATTERSON | CA | |
| 209-893 | ONVOY, LLC - CA | 649C | PLYMOUTH | CA | |
| 209-894 | GLOBAL VALLEY NETWORKS | 2315 | PATTERSON | CA | |
| 209-895 | GLOBAL VALLEY NETWORKS | 2315 | PATTERSON | CA | |
| 209-896 | BANDWIDTH.COM CLEC, LLC - CA | 981E | RIVERBANK | CA | |
| 209-898 | METROPCS, INC. | 5562 | STOCKTON | CA | |
| 209-899 | PACIFIC BELL | 9740 | MILTON | CA | |
| 209-900 | ONVOY, LLC - CA | 649C | MODESTO | CA | |
| 209-902 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA | |
| 209-903 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA | |
| 209-907 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA | |
| 209-908 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA | |
| 209-909 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA | |
| 209-910 | AT&T ENTERPRISES, LLC | 516C | STOCKTON | CA | |
| 209-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 209-912 | ONVOY, LLC - CA | 649C | GALT | CA | |
| 209-914 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TRACY | CA | |
| 209-915 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA | |
| 209-916 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | JAMESTOWN | CA | |
| 209-917 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LE GRAND | CA | |
| 209-918 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA | |
| 209-920 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | VALLEY SPG | CA | |
| 209-924 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RIPON | CA | |
| 209-926 | ONVOY, LLC - CA | 649C | STOCKTON | CA | |
| 209-927 | ONVOY, LLC - CA | 649C | MOCCASIN | CA | |
| 209-928 | CITIZENS TELECOM DBA FRONTIER COMM OF TOULUMNE | 2342 | TUOLUMNE | CA | |
| 209-929 | NUSO, LLC | 732J | STOCKTON | CA | |
| 209-931 | PACIFIC BELL | 9740 | STOCKTON | CA | |
| 209-932 | PACIFIC BELL | 9740 | STOCKTON | CA | |
| 209-933 | PACIFIC BELL | 9740 | STOCKTON | CA | |
| 209-937 | PACIFIC BELL | 9740 | STOCKTON | CA | |
| 209-938 | PACIFIC BELL | 9740 | STOCKTON | 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.