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 |
|---|---|---|---|---|---|---|---|
| 2026-05-06 | 951-745-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HEMT HEMT | CA |
| 2026-04-29 | 951-745-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HEMT HEMT | CA |
| 2026-04-20 | 951-812-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MIRA LOMA | CA |
| 2026-04-15 | 951-832-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | PERRIS | CA |
| 2026-04-15 | 951-832-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | PERRIS | CA |
| 2026-04-15 | 951-832-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | PERRIS | CA |
| 2026-04-15 | 951-832-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | PERRIS | CA |
| 2026-04-15 | 951-832-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | PERRIS | CA |
| 2026-04-15 | 951-832-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | PERRIS | CA |
| 2026-04-07 | 951-636-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CORONA | CA |
| 2026-03-11 | 951-803-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2026-03-11 | 951-832-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2026-03-11 | 951-832-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2026-03-11 | 951-832-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2026-03-11 | 951-832-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2026-02-19 | 951-408-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MURRIETA | CA |
| 2026-02-18 | 951-752-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MIRA LOMA | CA |
| 2026-02-18 | 951-803-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | PERRIS | CA |
| 2026-02-05 | 951-810-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2026-01-30 | 951-794-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | TEMECULA | CA |
| 2026-01-12 | 951-367-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RIVERSIDE | CA |
| 2026-01-06 | 951-649-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2026-01-06 | 951-649-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2025-12-18 | 951-748-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ELSINORE | CA |
| 2025-12-17 | 951-806-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-12-17 | 951-806-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-12-17 | 951-806-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-12-17 | 951-810-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-12-12 | 951-752-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MIRA LOMA | CA |
| 2025-12-04 | 951-771-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WOODCREST | CA |
| 2025-11-24 | 951-806-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-12 | 951-803-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PERRIS | CA |
| 2025-11-04 | 951-803-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | PERRIS | CA |
| 2025-10-30 | 951-649-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ARLINGTON | CA |
| 2025-10-30 | 951-649-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ARLINGTON | CA |
| 2025-10-30 | 951-649-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ARLINGTON | CA |
| 2025-10-30 | 951-754-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SUN CITY | CA |
| 2025-10-21 | 951-669-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2025-10-21 | 951-804-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2025-10-21 | 951-804-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2025-10-16 | 951-792-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | ARLINGTON | CA |
| 2025-10-16 | 951-806-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MORENO | CA |
| 2025-10-08 | 951-946-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HEMT SNJC | CA |
| 2025-10-03 | 951-632-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT SNJC | CA |
| 2025-10-02 | 951-792-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | ARLINGTON | 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.