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
2021-07-01 562-532-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2021-07-01 562-532-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2021-07-01 562-532-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2021-07-01 562-532-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2021-07-01 562-532-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2021-06-24 562-265-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2021-06-24 562-267-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2021-06-24 562-267-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2021-06-24 562-267-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2021-06-24 562-516-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C DOWNEY CA
2021-06-24 562-516-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C DOWNEY CA
2021-06-24 562-516-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C DOWNEY CA
2021-06-24 562-516-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C DOWNEY CA
2021-06-24 562-539-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C NORWALK CA
2021-06-24 562-539-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C NORWALK CA
2021-06-24 562-539-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C NORWALK CA
2021-06-24 562-550-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C WHITTIER CA
2021-06-24 562-662-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C WHITTIER CA
2021-06-23 562-267-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LA HABRA CA
2021-06-23 562-375-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ALAMITOS CA
2021-06-23 562-516-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H DOWNEY CA
2021-06-23 562-539-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H NORWALK CA
2021-06-23 562-566-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PICORIVERA CA
2021-06-23 562-731-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LAKEWOOD CA
2021-06-17 562-516-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DOWNEY CA
2021-06-17 562-516-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DOWNEY CA
2021-06-17 562-516-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DOWNEY CA
2021-06-16 562-525-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DOWNEY CA
2021-06-16 562-549-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LONG BEACH CA
2021-06-16 562-549-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LONG BEACH CA
2021-06-16 562-549-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LONG BEACH CA
2021-06-16 562-549-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LONG BEACH CA
2021-05-16 562-365-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA HABRA CA
2021-05-15 562-525-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 DOWNEY CA
2021-05-15 562-525-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 DOWNEY CA
2021-05-15 562-966-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 DOWNEY CA
2021-05-04 562-539-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NORWALK CA
2021-05-04 562-939-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-05-04 562-939-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-05-04 562-939-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-05-04 562-939-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-05-04 562-939-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-05-04 562-939-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-05-04 562-939-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-05-04 562-939-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F ALAMITOS CA
2021-04-26 562-539-0XXX 0000–0999Assigned TELNYX LLC 073H NORWALK CA
2021-04-26 562-550-6XXX 6000–6999Assigned TELNYX LLC 073H WHITTIER CA
2021-04-22 562-475-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LA HABRA CA
2021-04-22 562-475-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LA HABRA CA
2021-04-13 562-542-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH 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.