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 |
|---|---|---|---|---|---|---|---|
| 2015-04-09 | 562-250-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-04-09 | 562-250-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-04-09 | 562-416-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-04-09 | 562-418-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-04-09 | 562-418-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-04-09 | 562-418-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-04-07 | 562-367-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOWNEY | CA |
| 2015-04-07 | 562-367-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOWNEY | CA |
| 2015-04-07 | 562-367-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOWNEY | CA |
| 2015-04-07 | 562-372-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOWNEY | CA |
| 2015-04-06 | 562-295-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | CMTN CMTN | CA |
| 2015-04-01 | 562-456-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | PICORIVERA | CA |
| 2015-03-24 | 562-850-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | LONG BEACH | CA |
| 2015-03-24 | 562-850-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LONG BEACH | CA |
| 2015-03-24 | 562-850-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | LONG BEACH | CA |
| 2015-03-18 | 562-357-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | ALAMITOS | CA |
| 2015-03-18 | 562-357-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | ALAMITOS | CA |
| 2015-03-13 | 562-348-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2015-03-13 | 562-351-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2015-03-13 | 562-351-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2015-03-13 | 562-541-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2015-03-13 | 562-541-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2015-03-13 | 562-541-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2015-03-13 | 562-541-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2015-03-12 | 562-396-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DOWNEY | CA |
| 2015-03-12 | 562-451-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LA HABRA | CA |
| 2015-03-09 | 562-336-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-03-09 | 562-336-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-03-09 | 562-336-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-03-09 | 562-336-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-03-09 | 562-336-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-03-09 | 562-336-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-03-09 | 562-336-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-03-09 | 562-521-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2015-03-09 | 562-521-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2015-03-05 | 562-351-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WHITTIER | CA |
| 2015-03-05 | 562-351-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WHITTIER | CA |
| 2015-03-05 | 562-357-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALAMITOS | CA |
| 2015-03-05 | 562-357-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALAMITOS | CA |
| 2015-02-26 | 562-241-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALAMITOS | CA |
| 2015-02-26 | 562-241-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALAMITOS | CA |
| 2015-02-26 | 562-336-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LONG BEACH | CA |
| 2015-02-26 | 562-968-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WHITTIER | CA |
| 2015-02-25 | 562-416-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-02-25 | 562-416-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-02-25 | 562-416-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-02-18 | 562-241-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-02-18 | 562-241-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-02-18 | 562-241-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-02-18 | 562-241-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | 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.