NumberResearchRecent thousands-block assignments
12 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 |
|---|---|---|---|---|---|---|---|
| 2015-08-12 | 424-526-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | SNMN MRVS | CA |
| 2015-08-11 | 424-330-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNMN SNMN | CA |
| 2015-08-11 | 424-330-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNMN SNMN | CA |
| 2015-08-11 | 424-346-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MALIBU | CA |
| 2015-08-10 | 424-398-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDONDO | CA |
| 2015-08-10 | 424-522-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | BEVERLYHLS | CA |
| 2015-08-04 | 424-330-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN SNMN | CA |
| 2015-08-03 | 424-376-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | TORRANCE | CA |
| 2015-08-03 | 424-389-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | BEVERLYHLS | CA |
| 2015-08-03 | 424-389-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | BEVERLYHLS | CA |
| 2015-08-03 | 424-535-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | W ANGELES | CA |
| 2015-07-31 | 424-356-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | INGLEWOOD | CA |
| 2015-07-31 | 424-536-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2015-07-29 | 424-330-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNMN SNMN | CA |
| 2015-07-29 | 424-522-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BEVERLYHLS | CA |
| 2015-07-29 | 424-532-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CULVERCITY | CA |
| 2015-07-28 | 424-372-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | W ANGELES | CA |
| 2015-07-28 | 424-374-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAWTHORNE | CA |
| 2015-07-28 | 424-536-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SAN PEDRO | CA |
| 2015-07-24 | 424-389-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2015-07-24 | 424-389-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2015-07-24 | 424-389-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2015-07-24 | 424-389-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2015-07-24 | 424-389-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BEVERLYHLS | CA |
| 2015-07-24 | 424-443-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNMN MRVS | CA |
| 2015-07-21 | 424-523-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2015-07-20 | 424-398-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | REDONDO | CA |
| 2015-07-20 | 424-398-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | REDONDO | CA |
| 2015-07-16 | 424-291-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNMN SNMN | CA |
| 2015-07-16 | 424-299-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNMN SNMN | CA |
| 2015-07-16 | 424-527-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BEVERLYHLS | CA |
| 2015-07-16 | 424-536-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SAN PEDRO | CA |
| 2015-07-16 | 424-536-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SAN PEDRO | CA |
| 2015-07-10 | 424-392-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | REDONDO | CA |
| 2015-07-10 | 424-392-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | REDONDO | CA |
| 2015-07-08 | 424-358-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TORRANCE | CA |
| 2015-07-08 | 424-526-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNMN MRVS | CA |
| 2015-07-07 | 424-443-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN MRVS | CA |
| 2015-07-07 | 424-443-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN MRVS | CA |
| 2015-07-07 | 424-527-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-01 | 424-348-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HAWTHORNE | CA |
| 2015-07-01 | 424-387-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN SNMN | CA |
| 2015-07-01 | 424-398-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | REDONDO | CA |
| 2015-07-01 | 424-398-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | REDONDO | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.