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
2012-06-04 562-270-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LONG BEACH CA
2012-06-04 562-270-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LONG BEACH CA
2012-05-30 562-666-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ALAMITOS CA
2012-05-25 562-600-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C WHITTIER CA
2012-05-25 562-800-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2012-05-17 562-282-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NORWALK CA
2012-05-17 562-916-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NORWALK CA
2012-05-11 562-567-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WHITTIER CA
2012-05-11 562-567-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WHITTIER CA
2012-05-10 562-383-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA HABRA CA
2012-05-10 562-383-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA HABRA CA
2012-05-07 562-237-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA HABRA CA
2012-04-05 562-320-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2012-04-05 562-646-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2012-04-05 562-781-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2012-04-05 562-781-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2012-03-22 562-741-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NORWALK CA
2012-03-21 562-270-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2012-03-21 562-270-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2012-03-21 562-352-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LA HABRA CA
2012-03-21 562-373-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PICORIVERA CA
2012-03-21 562-567-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WHITTIER CA
2012-03-21 562-977-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2012-03-20 562-270-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LONG BEACH CA
2012-03-12 562-334-4XXX 4000–4999Assigned PACIFIC BELL (COMPETITIVE) 7480 DOWNEY CA
2012-03-08 562-315-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K LA HABRA CA
2012-03-01 562-446-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K ALAMITOS CA
2012-02-29 562-263-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C NORWALK CA
2012-02-29 562-354-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAKEWOOD CA
2012-02-14 562-263-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 NORWALK CA
2012-02-14 562-280-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ALAMITOS CA
2012-02-03 562-781-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2012-02-01 562-372-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DOWNEY CA
2012-02-01 562-758-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 WHITTIER CA
2012-01-12 562-284-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2012-01-12 562-446-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2012-01-11 562-270-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D LONG BEACH CA
2012-01-11 562-283-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D LONG BEACH CA
2011-12-13 562-444-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LAKEWOOD CA
2011-11-09 562-485-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LONG BEACH CA
2011-11-08 562-338-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ALAMITOS CA
2011-11-01 562-566-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 PICORIVERA CA
2011-10-26 562-270-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LONG BEACH CA
2011-10-05 562-285-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D LONG BEACH CA
2011-10-05 562-485-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D LONG BEACH CA
2011-09-13 562-758-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WHITTIER CA
2011-09-13 562-977-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2011-09-12 562-731-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LAKEWOOD CA
2011-09-08 562-204-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2011-09-08 562-204-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER 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.