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 |
|---|---|---|---|---|---|
| 949-770 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-777 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | IRVINE | CA | |
| 949-786 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-788 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-789 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-790 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-791 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | NEWPORTBCH | CA | |
| 949-793 | PACIFIC BELL (COMPETITIVE) | 7480 | LAGUNA BCH | CA | |
| 949-794 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-795 | T-MOBILE USA, INC. | 6529 | IRVINE | CA | |
| 949-797 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-798 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-800 | BANDWIDTH.COM CLEC, LLC - CA | 981E | IRVINE | CA | |
| 949-808 | UTILITY TELECOM GROUP, LLC - CA | 9262 | NEWPORTBCH | CA | |
| 949-809 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-811 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 949-813 | METROPCS NETWORKS, LLC | 899D | LAGUNA BCH | CA | |
| 949-823 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-824 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-829 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-830 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-831 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-833 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-835 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | TRABUCO | CA | |
| 949-836 | METROPCS NETWORKS, LLC | 899D | IRVINE | CA | |
| 949-837 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-838 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-842 | T-MOBILE USA, INC. | 6529 | CAPITRNVLY | CA | |
| 949-851 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-852 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-854 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-855 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-856 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-857 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-858 | PACIFIC BELL | 9740 | TRABUCO | CA | |
| 949-859 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-860 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | SADLBK VLY | CA | |
| 949-862 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-863 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-864 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | IRVINE | CA | |
| 949-872 | METROPCS NETWORKS, LLC | 899D | IRVINE | CA | |
| 949-873 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | NEWPORTBCH | CA | |
| 949-874 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RNCHOVIEJO | CA | |
| 949-877 | ONVOY, LLC - CA | 649C | NEWPORTBCH | CA | |
| 949-885 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | IRVINE | CA | |
| 949-888 | PACIFIC BELL | 9740 | TRABUCO | CA | |
| 949-893 | T-MOBILE USA, INC. | 6529 | RNCHOVIEJO | CA | |
| 949-899 | ONVOY, LLC - CA | 649C | CAPITRNVLY | CA | |
| 949-900 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SADLBK VLY | CA | |
| 949-910 | T-MOBILE USA, INC. | 6529 | IRVINE | 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.