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 |
|---|---|---|---|---|---|
| 949-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 949-916 | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SADLBK VLY | CA | |
| 949-922 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NEWPORTBCH | CA | |
| 949-926 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-929 | METROPCS NETWORKS, LLC | 899D | IRVINE | CA | |
| 949-930 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | IRVINE | CA | |
| 949-932 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-933 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NEWPORTBCH | CA | |
| 949-936 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-940 | PACIFIC BELL | 9740 | CAPITRNVLY | CA | |
| 949-944 | 33 WIRELESS INC. | 6967 | IRVINE | CA | |
| 949-945 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEWPORTBCH | CA | |
| 949-950 | CA | ||||
| 949-951 | PACIFIC BELL | 9740 | SADLBK VLY | CA | |
| 949-955 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-958 | CA | ||||
| 949-959 | CA | ||||
| 949-963 | NORTH COUNTY COMMUNICATION CORPORATION - CA | 7894 | SADLBK VLY | CA | |
| 949-975 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-976 | CA | ||||
| 949-977 | PACIFIC BELL | 9740 | IRVINE | CA | |
| 949-988 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | IRVINE | CA | |
| 949-999 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | NEWPORTBCH | CA | |
| 951-201 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-202 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-203 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-204 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-205 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-206 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-211 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 951-212 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-217 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-218 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-222 | PACIFIC BELL | 9740 | RIVERSIDE | CA | |
| 951-231 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RIVERSIDE | CA | |
| 951-232 | METROPCS NETWORKS, LLC | 899D | RIVERSIDE | CA | |
| 951-233 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-235 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-237 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RIVERSIDE | CA | |
| 951-242 | FRONTIER CALIFORNIA INC. | 2319 | MORENO | CA | |
| 951-243 | FRONTIER CALIFORNIA INC. | 2319 | MORENO | CA | |
| 951-244 | FRONTIER CALIFORNIA INC. | 2319 | SUN CITY | CA | |
| 951-245 | FRONTIER CALIFORNIA INC. | 2319 | ELSINORE | CA | |
| 951-246 | FRONTIER CALIFORNIA INC. | 2319 | SUN CITY | CA | |
| 951-247 | FRONTIER CALIFORNIA INC. | 2319 | MORENO | CA | |
| 951-248 | PACIFIC BELL | 9740 | RIVERSIDE | CA | |
| 951-252 | IP HORIZON LLC | 515J | TEMECULA | CA | |
| 951-253 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | ELSINORE | CA | |
| 951-254 | METROPCS NETWORKS, LLC | 899D | CORONA | CA | |
| 951-255 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | 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.