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
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-10-02 | 951-798-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2025-10-02 | 951-803-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2025-10-02 | 951-803-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2025-10-02 | 951-803-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2025-10-02 | 951-803-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2025-10-02 | 951-803-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2025-09-24 | 951-798-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PERRIS | CA |
| 2025-09-24 | 951-798-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PERRIS | CA |
| 2025-09-24 | 951-802-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MORENO | CA |
| 2025-09-24 | 951-802-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MORENO | CA |
| 2025-09-22 | 951-649-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ARLINGTON | CA |
| 2025-09-17 | 951-724-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HEMT HMLD | CA |
| 2025-09-17 | 951-771-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODCREST | CA |
| 2025-09-12 | 951-802-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-09-12 | 951-802-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-09-12 | 951-802-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-09-12 | 951-802-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-08-22 | 951-748-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ELSINORE | CA |
| 2025-08-20 | 951-535-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MURRIETA | CA |
| 2025-08-20 | 951-649-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ARLINGTON | CA |
| 2025-08-20 | 951-726-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT SNJC | CA |
| 2025-08-20 | 951-726-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT SNJC | CA |
| 2025-08-20 | 951-726-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT SNJC | CA |
| 2025-08-20 | 951-745-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2025-08-20 | 951-745-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2025-08-20 | 951-745-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2025-08-14 | 951-773-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CORONA | CA |
| 2025-08-14 | 951-773-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CORONA | CA |
| 2025-08-11 | 951-798-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PERRIS | CA |
| 2025-08-11 | 951-798-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PERRIS | CA |
| 2025-08-11 | 951-798-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PERRIS | CA |
| 2025-08-04 | 951-632-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HEMT SNJC | CA |
| 2025-07-30 | 951-752-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MIRA LOMA | CA |
| 2025-07-30 | 951-793-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-793-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-793-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-793-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-793-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-793-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-793-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-793-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-794-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-794-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-794-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-794-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-794-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-794-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-30 | 951-794-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEMECULA | CA |
| 2025-07-28 | 951-530-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | CA |
| 2025-07-28 | 951-631-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIVERSIDE | 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.