NumberResearchRecent thousands-block assignments
12 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 424
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 |
|---|---|---|---|---|---|---|---|
| 2015-12-14 | 424-533-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2015-12-14 | 424-533-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2015-12-14 | 424-581-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN SNMN | CA |
| 2015-12-14 | 424-581-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN SNMN | CA |
| 2015-12-14 | 424-581-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN SNMN | CA |
| 2015-12-11 | 424-369-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | W ANGELES | CA |
| 2015-12-11 | 424-369-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | W ANGELES | CA |
| 2015-12-10 | 424-378-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | LOMITA | CA |
| 2015-12-09 | 424-313-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | BEVERLYHLS | CA |
| 2015-12-08 | 424-312-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | INGLEWOOD | CA |
| 2015-12-08 | 424-312-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | INGLEWOOD | CA |
| 2015-12-08 | 424-339-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2015-12-08 | 424-339-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2015-12-08 | 424-339-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2015-12-08 | 424-339-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2015-12-01 | 424-370-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CMTN CMTN | CA |
| 2015-12-01 | 424-370-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CMTN CMTN | CA |
| 2015-11-25 | 424-379-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CMTN CMTN | CA |
| 2015-11-24 | 424-316-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNMN SNMN | CA |
| 2015-11-24 | 424-316-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SNMN SNMN | CA |
| 2015-11-24 | 424-360-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | TORRANCE | CA |
| 2015-11-24 | 424-360-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | TORRANCE | CA |
| 2015-11-24 | 424-396-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | CMTN GRDN | CA |
| 2015-11-24 | 424-396-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | CMTN GRDN | CA |
| 2015-11-19 | 424-350-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | REDONDO | CA |
| 2015-11-19 | 424-350-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | REDONDO | CA |
| 2015-11-19 | 424-379-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | CMTN CMTN | CA |
| 2015-11-19 | 424-379-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | CMTN CMTN | CA |
| 2015-11-19 | 424-379-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | CMTN CMTN | CA |
| 2015-11-19 | 424-379-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | CMTN CMTN | CA |
| 2015-11-16 | 424-316-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNMN SNMN | CA |
| 2015-11-13 | 424-313-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | BEVERLYHLS | CA |
| 2015-11-11 | 424-397-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | EL SEGUNDO | CA |
| 2015-10-30 | 424-303-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BEVERLYHLS | CA |
| 2015-10-30 | 424-303-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | BEVERLYHLS | CA |
| 2015-10-29 | 424-350-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | REDONDO | CA |
| 2015-10-27 | 424-378-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LOMITA | CA |
| 2015-10-21 | 424-443-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN MRVS | CA |
| 2015-10-20 | 424-350-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDONDO | CA |
| 2015-10-20 | 424-360-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TORRANCE | CA |
| 2015-10-20 | 424-383-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDONDO | CA |
| 2015-10-20 | 424-383-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDONDO | CA |
| 2015-10-16 | 424-369-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | W ANGELES | CA |
| 2015-10-14 | 424-303-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | BEVERLYHLS | CA |
| 2015-10-14 | 424-303-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | BEVERLYHLS | CA |
| 2015-10-14 | 424-360-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | TORRANCE | CA |
| 2015-10-14 | 424-375-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CMTN GRDN | CA |
| 2015-10-14 | 424-397-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | EL SEGUNDO | CA |
| 2015-10-12 | 424-342-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | SAN PEDRO | CA |
| 2015-10-09 | 424-303-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BEVERLYHLS | 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.