NumberResearchRecent thousands-block assignments
16 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, last 30 days — NPA 951
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 | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-11-11 | 951-821-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SUN CITY | CA |
| 2008-11-06 | 951-254-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | CORONA | CA |
| 2008-11-06 | 951-254-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | CORONA | CA |
| 2008-11-06 | 951-588-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2008-10-24 | 951-230-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PERRIS | CA |
| 2008-10-24 | 951-249-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MURRIETA | CA |
| 2008-10-24 | 951-251-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORENO | CA |
| 2008-10-24 | 951-251-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORENO | CA |
| 2008-10-24 | 951-254-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CORONA | CA |
| 2008-10-24 | 951-595-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TEMECULA | CA |
| 2008-10-24 | 951-732-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RIVERSIDE | CA |
| 2008-10-24 | 951-732-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RIVERSIDE | CA |
| 2008-10-24 | 951-821-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | SUN CITY | CA |
| 2008-10-24 | 951-821-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUN CITY | CA |
| 2008-10-23 | 951-226-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ELSINORE | CA |
| 2008-10-23 | 951-254-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORONA | CA |
| 2008-10-23 | 951-254-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORONA | CA |
| 2008-10-23 | 951-282-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HEMT HEMT | CA |
| 2008-10-23 | 951-790-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MIRA LOMA | CA |
| 2008-10-23 | 951-977-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ARLINGTON | CA |
| 2008-10-23 | 951-977-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ARLINGTON | CA |
| 2008-10-20 | 951-241-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | RIVERSIDE | CA |
| 2008-10-14 | 951-732-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | RIVERSIDE | CA |
| 2008-10-14 | 951-732-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | RIVERSIDE | CA |
| 2008-10-14 | 951-732-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | RIVERSIDE | CA |
| 2008-09-30 | 951-239-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MURRIETA | CA |
| 2008-09-25 | 951-392-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HEMT HEMT | CA |
| 2008-09-25 | 951-392-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HEMT HEMT | CA |
| 2008-09-23 | 951-249-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MURRIETA | CA |
| 2008-09-23 | 951-249-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MURRIETA | CA |
| 2008-09-11 | 951-208-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MORENO | CA |
| 2008-09-11 | 951-223-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HEMT HMLD | CA |
| 2008-09-11 | 951-595-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TEMECULA | CA |
| 2008-09-11 | 951-595-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TEMECULA | CA |
| 2008-08-26 | 951-665-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HEMT SNJC | CA |
| 2008-08-22 | 951-389-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | HEMT ANZA | CA |
| 2008-08-22 | 951-468-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | IDYLLWILD | CA |
| 2008-08-22 | 951-708-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | HEMT SAGE | CA |
| 2008-08-21 | 951-468-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | IDYLLWILD | CA |
| 2008-08-14 | 951-254-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | CORONA | CA |
| 2008-08-14 | 951-254-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | CORONA | CA |
| 2008-08-08 | 951-251-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MORENO | CA |
| 2008-08-07 | 951-575-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PERRIS | CA |
| 2008-08-05 | 951-251-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MORENO | CA |
| 2008-08-05 | 951-846-8XXX | 8000–8999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | BANNING | CA |
| 2008-08-04 | 951-797-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BANNING | CA |
| 2008-07-28 | 951-229-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PERRIS | CA |
| 2008-07-28 | 951-249-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRIETA | CA |
| 2008-07-24 | 951-214-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MORENO | CA |
| 2008-07-24 | 951-807-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MORENO | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.