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 |
|---|---|---|---|---|---|
| 213-901 | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA | |
| 213-905 | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA | |
| 213-908 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-909 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 10 | CA | |
| 213-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CA | |
| 213-915 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | LSAN DA 10 | CA | |
| 213-918 | AMERICAN MESSAGING SERVICES, LLC | 6906 | LSAN DA 01 | CA | |
| 213-919 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-921 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA | |
| 213-922 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-923 | METROPCS NETWORKS, LLC | 899D | LSAN DA 01 | CA | |
| 213-924 | METROPCS NETWORKS, LLC | 899D | LSAN DA 01 | CA | |
| 213-925 | METROPCS NETWORKS, LLC | 899D | LSAN DA 01 | CA | |
| 213-926 | METROPCS NETWORKS, LLC | 899D | LSAN DA 01 | CA | |
| 213-927 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 10 | CA | |
| 213-928 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-929 | ONVOY, LLC - CA | 649C | LSAN DA 01 | CA | |
| 213-943 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 01 | CA | |
| 213-944 | METROPCS NETWORKS, LLC | 899D | LSAN DA 01 | CA | |
| 213-947 | ONVOY, LLC - CA | 649C | LSAN DA 01 | CA | |
| 213-948 | METROPCS NETWORKS, LLC | 899D | LSAN DA 01 | CA | |
| 213-949 | METROPCS NETWORKS, LLC | 899D | LSAN DA 01 | CA | |
| 213-950 | CA | ||||
| 213-955 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-958 | CA | ||||
| 213-959 | CA | ||||
| 213-961 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-963 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-966 | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 07 | CA | |
| 213-968 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-972 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-973 | ONVOY, LLC - CA | 649C | LSAN DA 07 | CA | |
| 213-974 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-975 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-977 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-978 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-985 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LSAN DA 10 | CA | |
| 213-988 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-989 | PACIFIC BELL | 9740 | LSAN DA 10 | CA | |
| 213-990 | SPOK, INC. | 6630 | LSAN DA 01 | CA | |
| 213-992 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LSAN DA 07 | CA | |
| 213-995 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 01 | CA | |
| 213-996 | PACIFIC BELL | 9740 | LSAN DA 01 | CA | |
| 213-999 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA | |
| 214-200 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-201 | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | GRANDPRARI | TX | |
| 214-202 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-203 | ONVOY, LLC - TX | 903C | CEDAR HILL | TX | |
| 214-204 | ONVOY, LLC - TX | 903C | GRANDPRARI | TX | |
| 214-206 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
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.