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
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 213-627 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-628 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-629 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-630 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-631 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-632 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LSAN DA 10 | CA | |
| 213-633 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-634 | CENTURYLINK COMMUNICATIONS, LLC | 508J | LSAN DA 01 | CA | |
| 213-637 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-639 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-652 | ONVOY, LLC - CA | 649C | LSAN DA 01 | CA | |
| 213-666 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LSAN DA 01 | CA | |
| 213-670 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-673 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-674 | ONVOY, LLC - CA | 649C | LSAN DA 10 | CA | |
| 213-680 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-683 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-685 | NUSO, LLC | 732J | LSAN DA 06 | CA | |
| 213-687 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-688 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-689 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-694 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-699 | ONVOY, LLC - CA | 649C | LSAN DA 07 | CA | |
| 213-700 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-701 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-702 | 33 WIRELESS INC. | 6967 | LSAN DA 01 | CA | |
| 213-703 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-704 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-707 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-710 | 33 WIRELESS INC. | 6967 | CMTN GRDN | CA | |
| 213-711 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 213-717 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-718 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-723 | TWILIO INTERNATIONAL, INC. | 506J | LSAN DA 01 | CA | |
| 213-736 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-738 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-739 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-740 | FRONTIER CALIFORNIA INC. | 7534 | LSAN DA 07 | CA | |
| 213-741 | PACIFIC BELL | 9740 | LSAN DA 07 | CA | |
| 213-742 | PACIFIC BELL | 9740 | LSAN DA 07 | CA | |
| 213-743 | PACIFIC BELL | 9740 | LSAN DA 07 | CA | |
| 213-744 | PACIFIC BELL | 9740 | LSAN DA 07 | CA | |
| 213-745 | PACIFIC BELL | 9740 | LSAN DA 07 | CA | |
| 213-746 | PACIFIC BELL | 9740 | LSAN DA 07 | CA | |
| 213-747 | PACIFIC BELL | 9740 | LSAN DA 07 | CA | |
| 213-748 | PACIFIC BELL | 9740 | LSAN DA 07 | CA | |
| 213-749 | PACIFIC BELL | 9740 | LSAN DA 07 | CA | |
| 213-760 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-761 | METROPCS NETWORKS, LLC | 899D | LSAN DA 01 | CA | |
| 213-763 | PACIFIC BELL | 9740 | LSAN DA 07 | 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.