NumberResearchRecent thousands-block assignments
27 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 |
|---|---|---|---|---|---|---|---|
| 2022-09-01 | 951-597-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONA | CA |
| 2022-09-01 | 951-942-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MURRIETA | CA |
| 2022-08-26 | 951-561-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | TEMSCL CNY | CA |
| 2022-08-26 | 951-561-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | TEMSCL CNY | CA |
| 2022-08-26 | 951-561-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | TEMSCL CNY | CA |
| 2022-08-26 | 951-597-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | CORONA | CA |
| 2022-08-26 | 951-998-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | HEMT HMLD | CA |
| 2022-08-26 | 951-998-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | HEMT HMLD | CA |
| 2022-08-26 | 951-998-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | HEMT HMLD | CA |
| 2022-08-18 | 951-596-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | MORENO | CA |
| 2022-08-18 | 951-614-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | ELSINORE | CA |
| 2022-08-18 | 951-942-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRIETA | CA |
| 2022-08-17 | 951-607-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | LAKEVIEWNU | CA |
| 2022-08-17 | 951-607-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | LAKEVIEWNU | CA |
| 2022-08-05 | 951-614-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | ELSINORE | CA |
| 2022-08-05 | 951-614-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | ELSINORE | CA |
| 2022-08-05 | 951-614-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | ELSINORE | CA |
| 2022-08-05 | 951-614-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | ELSINORE | CA |
| 2022-08-05 | 951-614-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | ELSINORE | CA |
| 2022-08-05 | 951-614-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | ELSINORE | CA |
| 2022-08-05 | 951-942-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | MURRIETA | CA |
| 2022-08-05 | 951-942-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | MURRIETA | CA |
| 2022-08-04 | 951-571-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MORENO | CA |
| 2022-08-04 | 951-590-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | HEMT HEMT | CA |
| 2022-07-26 | 951-596-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORENO | CA |
| 2022-07-26 | 951-596-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORENO | CA |
| 2022-07-26 | 951-596-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORENO | CA |
| 2022-07-26 | 951-596-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORENO | CA |
| 2022-07-26 | 951-596-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORENO | CA |
| 2022-07-26 | 951-610-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | PERRIS | CA |
| 2022-07-26 | 951-610-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | PERRIS | CA |
| 2022-07-25 | 951-598-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ARLINGTON | CA |
| 2022-07-20 | 951-606-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SUN CITY | CA |
| 2022-07-13 | 951-604-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT SNJC | CA |
| 2022-07-13 | 951-604-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT SNJC | CA |
| 2022-07-13 | 951-612-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | BANNING | CA |
| 2022-07-13 | 951-612-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | BANNING | CA |
| 2022-07-13 | 951-612-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | BANNING | CA |
| 2022-07-13 | 951-612-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | BANNING | CA |
| 2022-07-13 | 951-612-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | BANNING | CA |
| 2022-07-13 | 951-612-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | BANNING | CA |
| 2022-07-05 | 951-364-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HEMT SAGE | CA |
| 2022-06-28 | 951-561-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | TEMSCL CNY | CA |
| 2022-06-22 | 951-590-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HEMT HEMT | CA |
| 2022-06-22 | 951-593-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HEMT HEMT | CA |
| 2022-06-22 | 951-593-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HEMT HEMT | CA |
| 2022-06-14 | 951-561-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TEMSCL CNY | CA |
| 2022-06-14 | 951-593-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | HEMT HEMT | CA |
| 2022-06-10 | 951-556-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ARLINGTON | CA |
| 2022-06-10 | 951-610-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PERRIS | 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.