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
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 213-519 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 07 | CA | |
| 213-520 | PACIFIC BELL | 9740 | LSAN DA 14 | CA | |
| 213-528 | VOIP INNOVATIONS, LLC | 597F | LSAN DA 02 | CA | |
| 213-529 | ONVOY, LLC - CA | 649C | LSAN DA 10 | CA | |
| 213-532 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-533 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-534 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-536 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LSAN DA 07 | CA | |
| 213-537 | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 01 | CA | |
| 213-538 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-539 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA | |
| 213-542 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LSAN DA 01 | CA | |
| 213-545 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LSAN DA 07 | CA | |
| 213-550 | IP HORIZON LLC | 515J | LSAN DA 01 | CA | |
| 213-553 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-555 | MULTIPLE OCN LISTING | MULT | DIR ASST | CA | |
| 213-559 | ONVOY, LLC - CA | 649C | LSAN DA 01 | CA | |
| 213-570 | METROPCS NETWORKS, LLC | 899D | LSAN DA 10 | CA | |
| 213-572 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LSAN DA 01 | CA | |
| 213-576 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-580 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-587 | ONVOY, LLC - CA | 649C | LSAN DA 01 | CA | |
| 213-590 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-591 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CMTN GRDN | CA | |
| 213-593 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-595 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-596 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LSAN DA 01 | CA | |
| 213-598 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-599 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-600 | ONVOY, LLC - CA | 649C | LSAN DA 10 | CA | |
| 213-602 | LEAP TELECOM, LLC | 616J | LSAN DA 01 | CA | |
| 213-604 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-605 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-607 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 01 | CA | |
| 213-608 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 07 | CA | |
| 213-611 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 213-612 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-613 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-614 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-615 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-616 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 10 | CA | |
| 213-617 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-618 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-620 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-621 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-622 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-623 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-624 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-625 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-626 | PACIFIC BELL | 9740 | LSAN DA 01 | 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.