NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 1
BANDWIDTH.COM CLEC, LLC - CA 1
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2018-06-22 562-380-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2018-06-22 562-380-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2018-06-22 562-380-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2018-06-22 562-380-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2018-06-22 562-380-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2018-06-19 562-337-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2018-06-19 562-980-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2018-05-14 562-358-8XXX 8000–8999Assigned AIRESPRING, INC. 996H WHITTIER CA
2018-05-11 562-249-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAKEWOOD CA
2018-05-04 562-702-2XXX 2000–2999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H ALAMITOS CA
2018-05-03 562-982-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LAKEWOOD CA
2018-05-01 562-317-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D LONG BEACH CA
2018-04-30 562-249-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LAKEWOOD CA
2018-04-26 562-379-7XXX 7000–7999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H NORWALK CA
2018-04-26 562-395-6XXX 6000–6999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H PICORIVERA CA
2018-04-26 562-501-0XXX 0000–0999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H LA HABRA CA
2018-04-26 562-740-2XXX 2000–2999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H LAKEWOOD CA
2018-04-11 562-228-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D NORWALK CA
2018-03-28 562-359-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D DOWNEY CA
2018-03-22 562-725-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ALAMITOS CA
2018-03-22 562-725-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ALAMITOS CA
2018-03-20 562-702-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2018-03-20 562-702-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2018-03-20 562-702-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2018-03-20 562-702-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2018-03-20 562-702-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2018-03-02 562-551-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PICORIVERA CA
2018-03-02 562-551-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PICORIVERA CA
2018-02-02 562-825-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ALAMITOS CA
2018-02-02 562-967-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2018-01-18 562-825-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C ALAMITOS CA
2018-01-18 562-825-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C ALAMITOS CA
2018-01-18 562-825-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C ALAMITOS CA
2018-01-08 562-306-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 DOWNEY CA
2018-01-08 562-306-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 DOWNEY CA
2017-12-15 562-825-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ALAMITOS CA
2017-12-12 562-501-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2017-12-12 562-501-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2017-12-06 562-339-1XXX 1000–1999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 ALAMITOS CA
2017-12-06 562-339-2XXX 2000–2999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 ALAMITOS CA
2017-12-06 562-339-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 ALAMITOS CA
2017-11-30 562-557-0XXX 0000–0999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 WHITTIER CA
2017-11-30 562-557-1XXX 1000–1999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 WHITTIER CA
2017-11-30 562-557-2XXX 2000–2999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 WHITTIER CA
2017-11-30 562-557-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 WHITTIER CA
2017-11-30 562-558-0XXX 0000–0999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 LA HABRA CA
2017-11-30 562-558-1XXX 1000–1999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 LA HABRA CA
2017-11-30 562-558-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 LA HABRA CA
2017-11-30 562-558-8XXX 8000–8999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 LA HABRA CA
2017-11-30 562-559-0XXX 0000–0999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 NORWALK 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.