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
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Jan 2026
Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-02-18 | 562-241-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-02-18 | 562-241-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-02-18 | 562-241-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-02-18 | 562-475-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LA HABRA | CA |
| 2015-02-18 | 562-475-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LA HABRA | CA |
| 2015-02-18 | 562-475-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LA HABRA | CA |
| 2015-02-05 | 562-418-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-02-05 | 562-584-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2015-01-23 | 562-336-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-01-23 | 562-336-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2015-01-21 | 562-452-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LAKEWOOD | CA |
| 2015-01-19 | 562-846-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2015-01-16 | 562-241-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-01-16 | 562-382-2XXX | 2000–2999 | Assigned | PACIFIC BELL (COMPETITIVE) | 7480 | DOWNEY | CA |
| 2015-01-16 | 562-392-7XXX | 7000–7999 | Assigned | PACIFIC BELL (COMPETITIVE) | 7480 | DOWNEY | CA |
| 2015-01-14 | 562-936-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ALAMITOS | CA |
| 2015-01-12 | 562-341-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-01-12 | 562-341-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-01-12 | 562-341-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-01-12 | 562-341-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2015-01-09 | 562-521-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2015-01-06 | 562-259-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | CMTN CMTN | CA |
| 2015-01-06 | 562-469-2XXX | 2000–2999 | Assigned | METROPCS NETWORKS, LLC | 899D | DOWNEY | CA |
| 2015-01-06 | 562-781-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | WHITTIER | CA |
| 2014-12-23 | 562-294-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | LONG BEACH | CA |
| 2014-12-18 | 562-294-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | LONG BEACH | CA |
| 2014-12-18 | 562-341-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2014-12-18 | 562-341-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2014-12-18 | 562-341-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2014-12-05 | 562-294-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | LONG BEACH | CA |
| 2014-12-05 | 562-762-2XXX | 2000–2999 | Assigned | METROPCS NETWORKS, LLC | 899D | WHITTIER | CA |
| 2014-12-04 | 562-250-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOWNEY | CA |
| 2014-12-04 | 562-419-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOWNEY | CA |
| 2014-12-04 | 562-448-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LA HABRA | CA |
| 2014-12-04 | 562-448-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LA HABRA | CA |
| 2014-12-04 | 562-451-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LA HABRA | CA |
| 2014-12-04 | 562-452-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LAKEWOOD | CA |
| 2014-12-04 | 562-452-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LAKEWOOD | CA |
| 2014-12-04 | 562-600-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WHITTIER | CA |
| 2014-12-04 | 562-641-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PICORIVERA | CA |
| 2014-12-04 | 562-641-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PICORIVERA | CA |
| 2014-12-04 | 562-745-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOWNEY | CA |
| 2014-12-04 | 562-762-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WHITTIER | CA |
| 2014-12-04 | 562-762-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WHITTIER | CA |
| 2014-12-04 | 562-846-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WHITTIER | CA |
| 2014-11-20 | 562-342-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | ALAMITOS | CA |
| 2014-11-20 | 562-387-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | ALAMITOS | CA |
| 2014-11-20 | 562-742-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | ALAMITOS | CA |
| 2014-11-20 | 562-742-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | ALAMITOS | CA |
| 2014-11-20 | 562-961-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | 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.