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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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 951-897 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-898 | PACIFIC BELL | 9740 | CORONA | CA | |
| 951-900 | ONVOY, LLC - CA | 649C | RIVERSIDE | CA | |
| 951-901 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WOODCREST | CA | |
| 951-903 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MIRA LOMA | CA | |
| 951-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 951-914 | FRONTIER CALIFORNIA INC. | 2319 | TEMECULA | CA | |
| 951-916 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LAKEVIEWNU | CA | |
| 951-922 | FRONTIER CALIFORNIA INC. | 2319 | BANNING | CA | |
| 951-924 | FRONTIER CALIFORNIA INC. | 2319 | MORENO | CA | |
| 951-925 | FRONTIER CALIFORNIA INC. | 2319 | HEMT HEMT | CA | |
| 951-926 | FRONTIER CALIFORNIA INC. | 2319 | HEMT HMLD | CA | |
| 951-927 | FRONTIER CALIFORNIA INC. | 2319 | HEMT HEMT | CA | |
| 951-928 | FRONTIER CALIFORNIA INC. | 2319 | LAKEVIEWNU | CA | |
| 951-929 | FRONTIER CALIFORNIA INC. | 2319 | HEMT HEMT | CA | |
| 951-934 | IP HORIZON LLC | 515J | MIRA LOMA | CA | |
| 951-940 | FRONTIER CALIFORNIA INC. | 2319 | PERRIS | CA | |
| 951-943 | FRONTIER CALIFORNIA INC. | 2319 | PERRIS | CA | |
| 951-950 | CA | ||||
| 951-955 | PACIFIC BELL | 9740 | RIVERSIDE | CA | |
| 951-958 | CA | ||||
| 951-959 | CA | ||||
| 951-963 | METROPCS NETWORKS, LLC | 899D | CORONA | CA | |
| 951-966 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-968 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | MIRA LOMA | CA | |
| 951-973 | T-MOBILE USA, INC. | 6529 | MURRIETA | CA | |
| 951-976 | CA | ||||
| 951-977 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | ARLINGTON | CA | |
| 951-987 | ONVOY, LLC - CA | 649C | CORONA | CA | |
| 951-990 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA | |
| 951-999 | ONVOY, LLC - CA | 649C | MORENO | CA | |
| 952-200 | AERIAL COMMUNICATIONS, INC. | 6701 | TWINCITIES | MN | |
| 952-203 | SPOK, INC. | 6630 | TWINCITIES | MN | |
| 952-211 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MN | |
| 952-216 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-217 | AERIAL COMMUNICATIONS, INC. | 6701 | TWINCITIES | MN | |
| 952-223 | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | TWINCITIES | MN | |
| 952-225 | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | TWINCITIES | MN | |
| 952-226 | SCOTT RICE TEL. CO. DBA INTEGRA TELECOM | 1479 | TWINCITIES | MN | |
| 952-227 | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | TWINCITIES | MN | |
| 952-229 | TELEPORT COMMUNICATIONS AMERICA, LLC - MN | 8405 | TWINCITIES | MN | |
| 952-230 | ONVOY, LLC - MN | 184D | TWINCITIES | MN | |
| 952-231 | SPOK, INC. | 6630 | TWINCITIES | MN | |
| 952-232 | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | TWINCITIES | MN | |
| 952-233 | QWEST CORPORATION | 9631 | TWINCITIES | MN | |
| 952-236 | ONVOY, LLC - MN | 184D | TWINCITIES | MN | |
| 952-238 | QWEST CORPORATION | 9631 | TWINCITIES | MN | |
| 952-241 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-242 | AERIAL COMMUNICATIONS, INC. | 6701 | TWINCITIES | MN | |
| 952-244 | AMERICAN MESSAGING SERVICES, LLC | 9748 | TWINCITIES | MN |
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.