NumberResearchRecent thousands-block assignments
27 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-10-18 | 951-728-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HEMT HEMT | CA |
| 2024-10-15 | 951-813-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MURRIETA | CA |
| 2024-10-14 | 951-525-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ARLINGTON | CA |
| 2024-10-14 | 951-566-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SUN CITY | CA |
| 2024-10-14 | 951-702-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CORONA | CA |
| 2024-10-09 | 951-731-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2024-10-09 | 951-731-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2024-10-09 | 951-745-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2024-10-09 | 951-745-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2024-10-01 | 951-706-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | WOODCREST | CA |
| 2024-09-19 | 951-508-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CORONA | CA |
| 2024-09-19 | 951-608-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MIRA LOMA | CA |
| 2024-09-19 | 951-725-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HEMT HMLD | CA |
| 2024-09-19 | 951-725-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HEMT HMLD | CA |
| 2024-09-19 | 951-725-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HEMT HMLD | CA |
| 2024-09-19 | 951-725-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HEMT HMLD | CA |
| 2024-09-19 | 951-761-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BANNING | CA |
| 2024-09-19 | 951-761-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BANNING | CA |
| 2024-09-19 | 951-761-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BANNING | CA |
| 2024-09-16 | 951-730-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PERRIS | CA |
| 2024-09-06 | 951-481-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WOODCREST | CA |
| 2024-09-06 | 951-565-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WOODCREST | CA |
| 2024-09-06 | 951-731-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ARLINGTON | CA |
| 2024-08-28 | 951-726-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT SNJC | CA |
| 2024-08-26 | 951-209-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MORENO | CA |
| 2024-08-26 | 951-209-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MORENO | CA |
| 2024-08-20 | 951-708-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | HEMT SAGE | CA |
| 2024-08-19 | 951-260-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2024-08-19 | 951-513-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HEMT HMLD | CA |
| 2024-08-19 | 951-633-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2024-08-19 | 951-702-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | CORONA | CA |
| 2024-08-19 | 951-725-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HEMT HMLD | CA |
| 2024-08-19 | 951-725-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HEMT HMLD | CA |
| 2024-08-19 | 951-761-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BANNING | CA |
| 2024-08-12 | 951-579-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ELSINORE | CA |
| 2024-08-12 | 951-730-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PERRIS | CA |
| 2024-07-30 | 951-730-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PERRIS | CA |
| 2024-07-30 | 951-730-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PERRIS | CA |
| 2024-07-10 | 951-740-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TEMECULA | CA |
| 2024-07-10 | 951-740-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TEMECULA | CA |
| 2024-06-27 | 951-973-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MURRIETA | CA |
| 2024-06-21 | 951-209-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2024-06-21 | 951-209-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2024-06-21 | 951-209-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2024-06-12 | 951-717-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | RIVERSIDE | CA |
| 2024-06-11 | 951-209-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MORENO | CA |
| 2024-05-29 | 951-702-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | CORONA | CA |
| 2024-05-29 | 951-731-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | ARLINGTON | CA |
| 2024-05-29 | 951-847-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | CORONA | CA |
| 2024-05-28 | 951-622-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MIRA LOMA | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.