NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 213-393 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-401 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 10 | CA | |
| 213-402 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-403 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-404 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-405 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-406 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-407 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-408 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 01 | CA | |
| 213-411 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 213-412 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-413 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-415 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-416 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-417 | PAETEC ITEL, LLC | 829J | LSAN DA 01 | CA | |
| 213-422 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-426 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-427 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-430 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-434 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-435 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 213-437 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-438 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-439 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-443 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 01 | CA | |
| 213-444 | ONVOY, LLC - CA | 649C | LSAN DA 07 | CA | |
| 213-445 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CMTN GRDN | CA | |
| 213-446 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-447 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-448 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-452 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-453 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-455 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LSAN DA 01 | CA | |
| 213-458 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LSAN DA 01 | CA | |
| 213-463 | ONVOY SPECTRUM, LLC | 624H | LSAN DA 01 | CA | |
| 213-465 | IP HORIZON LLC | 515J | LSAN DA 07 | CA | |
| 213-467 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-470 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-471 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 10 | CA | |
| 213-473 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-478 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 10 | CA | |
| 213-480 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-481 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-482 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-483 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-484 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-485 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-486 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-487 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-488 | PACIFIC BELL | 9740 | LSAN DA 01 | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.