NumberResearchRecent thousands-block assignments
2 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 562
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 |
|---|---|---|---|---|---|---|---|
| 2017-11-30 | 562-559-1XXX | 1000–1999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | NORWALK | CA |
| 2017-11-30 | 562-559-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | NORWALK | CA |
| 2017-11-30 | 562-559-9XXX | 9000–9999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | NORWALK | CA |
| 2017-11-30 | 562-718-1XXX | 1000–1999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LONG BEACH | CA |
| 2017-11-30 | 562-718-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LONG BEACH | CA |
| 2017-11-30 | 562-718-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LONG BEACH | CA |
| 2017-11-30 | 562-718-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LONG BEACH | CA |
| 2017-11-29 | 562-339-0XXX | 0000–0999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ALAMITOS | CA |
| 2017-11-29 | 562-339-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ALAMITOS | CA |
| 2017-11-29 | 562-339-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ALAMITOS | CA |
| 2017-11-29 | 562-339-8XXX | 8000–8999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ALAMITOS | CA |
| 2017-11-29 | 562-339-9XXX | 9000–9999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ALAMITOS | CA |
| 2017-11-29 | 562-750-0XXX | 0000–0999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CMTN CMTN | CA |
| 2017-11-29 | 562-750-1XXX | 1000–1999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CMTN CMTN | CA |
| 2017-11-29 | 562-750-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CMTN CMTN | CA |
| 2017-11-29 | 562-750-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CMTN CMTN | CA |
| 2017-11-29 | 562-750-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CMTN CMTN | CA |
| 2017-11-29 | 562-750-8XXX | 8000–8999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CMTN CMTN | CA |
| 2017-11-29 | 562-750-9XXX | 9000–9999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CMTN CMTN | CA |
| 2017-10-25 | 562-359-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | DOWNEY | CA |
| 2017-10-25 | 562-359-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | DOWNEY | CA |
| 2017-10-25 | 562-359-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | DOWNEY | CA |
| 2017-10-25 | 562-732-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2017-10-19 | 562-358-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | WHITTIER | CA |
| 2017-10-19 | 562-358-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | WHITTIER | CA |
| 2017-10-19 | 562-358-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | WHITTIER | CA |
| 2017-10-17 | 562-379-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | NORWALK | CA |
| 2017-10-17 | 562-379-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | NORWALK | CA |
| 2017-10-17 | 562-379-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | NORWALK | CA |
| 2017-10-17 | 562-379-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | NORWALK | CA |
| 2017-10-17 | 562-379-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | NORWALK | CA |
| 2017-10-17 | 562-471-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LONG BEACH | CA |
| 2017-10-17 | 562-471-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | LONG BEACH | CA |
| 2017-10-17 | 562-471-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | LONG BEACH | CA |
| 2017-10-17 | 562-471-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | LONG BEACH | CA |
| 2017-10-17 | 562-471-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | LONG BEACH | CA |
| 2017-10-13 | 562-359-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | DOWNEY | CA |
| 2017-09-25 | 562-358-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WHITTIER | CA |
| 2017-09-25 | 562-359-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DOWNEY | CA |
| 2017-09-25 | 562-359-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DOWNEY | CA |
| 2017-09-22 | 562-588-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALAMITOS | CA |
| 2017-09-22 | 562-588-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ALAMITOS | CA |
| 2017-09-20 | 562-337-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | LONG BEACH | CA |
| 2017-09-20 | 562-337-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | LONG BEACH | CA |
| 2017-09-20 | 562-379-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | NORWALK | CA |
| 2017-09-13 | 562-358-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | WHITTIER | CA |
| 2017-09-08 | 562-821-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PICORIVERA | CA |
| 2017-09-08 | 562-821-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PICORIVERA | CA |
| 2017-09-07 | 562-249-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LAKEWOOD | CA |
| 2017-08-31 | 562-740-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LAKEWOOD | 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.