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
Aug 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 949-587 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-588 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-589 | PACIFIC BELL | 9740 | TRABUCO | CA | |
| 949-590 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | IRVINE | CA | |
| 949-595 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-597 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-598 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-599 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SADLBK VLY | CA | |
| 949-600 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SADLBK VLY | CA | |
| 949-606 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | 7379 | CAPITRNVLY | CA | |
| 949-607 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LAGUNA BCH | CA | |
| 949-608 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | IRVINE | CA | |
| 949-609 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-610 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | NEWPORTBCH | CA | |
| 949-611 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 949-612 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | NEWPORTBCH | CA | |
| 949-613 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LAGUNA BCH | CA | |
| 949-614 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SADLBK VLY | CA | |
| 949-616 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | SADLBK VLY | CA | |
| 949-619 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SADLBK VLY | CA | |
| 949-622 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-623 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | IRVINE | CA | |
| 949-625 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | 7379 | RNCHOVIEJO | CA | |
| 949-629 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | NEWPORTBCH | CA | |
| 949-631 | PACIFIC BELL | 9740 | NEWPORTBCH | CA | |
| 949-633 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SADLBK VLY | CA | |
| 949-635 | PACIFIC BELL | 9740 | TRABUCO | CA | |
| 949-640 | PACIFIC BELL | 9740 | NEWPORTBCH | CA | |
| 949-642 | PACIFIC BELL | 9740 | NEWPORTBCH | CA | |
| 949-643 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-644 | PACIFIC BELL | 9740 | NEWPORTBCH | CA | |
| 949-645 | PACIFIC BELL | 9740 | NEWPORTBCH | CA | |
| 949-646 | PACIFIC BELL | 9740 | NEWPORTBCH | CA | |
| 949-650 | PACIFIC BELL | 9740 | NEWPORTBCH | CA | |
| 949-651 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-653 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-654 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-655 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | IRVINE | CA | |
| 949-657 | AMERICAN MESSAGING SERVICES, LLC | 9748 | IRVINE | CA | |
| 949-660 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-661 | PACIFIC BELL | 9740 | CAPITRNVLY | CA | |
| 949-666 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | 7379 | TRABUCO | CA | |
| 949-667 | BANDWIDTH.COM CLEC, LLC - CA | 981E | SADLBK VLY | CA | |
| 949-670 | STRATUS NETWORKS | 495J | CAPITRNVLY | CA | |
| 949-672 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-673 | PACIFIC BELL | 9740 | NEWPORTBCH | CA | |
| 949-675 | PACIFIC BELL | 9740 | NEWPORTBCH | CA | |
| 949-677 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | IRVINE | CA | |
| 949-678 | T-MOBILE USA, INC. | 6529 | IRVINE | CA | |
| 949-679 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | 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.