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 |
|---|---|---|---|---|---|---|---|
| 2010-09-03 | 951-878-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LAKEVIEWNU | CA |
| 2010-09-01 | 951-842-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | MORENO | CA |
| 2010-08-31 | 951-290-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MURRIETA | CA |
| 2010-08-31 | 951-403-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | CORONA | CA |
| 2010-08-25 | 951-638-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TEMSCL CNY | CA |
| 2010-08-23 | 951-842-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | MORENO | CA |
| 2010-08-18 | 951-444-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORONA | CA |
| 2010-08-18 | 951-666-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORONA | CA |
| 2010-08-18 | 951-888-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RIVERSIDE | CA |
| 2010-08-17 | 951-595-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TEMECULA | CA |
| 2010-08-09 | 951-281-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONA | CA |
| 2010-08-04 | 951-289-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | RIVERSIDE | CA |
| 2010-08-03 | 951-398-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WOODCREST | CA |
| 2010-07-20 | 951-292-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT SNJC | CA |
| 2010-07-20 | 951-330-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2010-07-20 | 951-330-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2010-07-19 | 951-297-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | TEMECULA | CA |
| 2010-07-16 | 951-398-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | WOODCREST | CA |
| 2010-07-16 | 951-525-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2010-07-15 | 951-289-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | RIVERSIDE | CA |
| 2010-07-15 | 951-290-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MURRIETA | CA |
| 2010-07-15 | 951-291-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | ELSINORE | CA |
| 2010-07-15 | 951-293-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | PERRIS | CA |
| 2010-07-15 | 951-821-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SUN CITY | CA |
| 2010-07-15 | 951-842-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MORENO | CA |
| 2010-06-28 | 951-777-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RIVERSIDE | CA |
| 2010-06-15 | 951-297-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TEMECULA | CA |
| 2010-06-15 | 951-297-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TEMECULA | CA |
| 2010-06-14 | 951-293-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PERRIS | CA |
| 2010-06-09 | 951-292-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HEMT SNJC | CA |
| 2010-06-09 | 951-293-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PERRIS | CA |
| 2010-06-08 | 951-289-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | RIVERSIDE | CA |
| 2010-06-04 | 951-234-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TEMECULA | CA |
| 2010-06-04 | 951-234-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TEMECULA | CA |
| 2010-06-04 | 951-267-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BANNING | CA |
| 2010-06-04 | 951-268-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORONA | CA |
| 2010-06-04 | 951-268-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORONA | CA |
| 2010-06-04 | 951-268-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORONA | CA |
| 2010-06-04 | 951-268-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORONA | CA |
| 2010-06-04 | 951-289-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RIVERSIDE | CA |
| 2010-06-04 | 951-289-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RIVERSIDE | CA |
| 2010-06-04 | 951-290-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MURRIETA | CA |
| 2010-06-04 | 951-290-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MURRIETA | CA |
| 2010-06-04 | 951-291-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ELSINORE | CA |
| 2010-06-04 | 951-330-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HEMT HEMT | CA |
| 2010-06-04 | 951-525-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ARLINGTON | CA |
| 2010-06-04 | 951-525-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ARLINGTON | CA |
| 2010-06-04 | 951-703-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MIRA LOMA | CA |
| 2010-06-04 | 951-821-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUN CITY | CA |
| 2010-06-04 | 951-842-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | 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.