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
2013-03-04 562-742-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F ALAMITOS CA
2013-02-27 562-473-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2013-02-08 562-202-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NORWALK CA
2013-02-04 562-273-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHITTIER CA
2013-01-31 562-202-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NORWALK CA
2013-01-30 562-248-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ALAMITOS CA
2013-01-30 562-287-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DOWNEY CA
2013-01-30 562-473-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LONG BEACH CA
2013-01-30 562-551-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PICORIVERA CA
2013-01-21 562-452-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LAKEWOOD CA
2013-01-14 562-332-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2013-01-14 562-332-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2013-01-14 562-332-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2013-01-14 562-332-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2013-01-14 562-332-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WHITTIER CA
2013-01-09 562-202-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NORWALK CA
2013-01-09 562-202-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NORWALK CA
2013-01-09 562-202-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NORWALK CA
2012-12-31 562-449-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ALAMITOS CA
2012-12-31 562-546-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ALAMITOS CA
2012-12-21 562-202-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K NORWALK CA
2012-12-14 562-719-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C ALAMITOS CA
2012-12-13 562-473-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2012-12-13 562-473-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2012-12-13 562-473-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2012-12-13 562-473-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2012-12-13 562-473-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LONG BEACH CA
2012-12-06 562-742-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ALAMITOS CA
2012-12-04 562-352-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2012-12-04 562-371-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2012-12-04 562-371-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2012-12-04 562-376-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C NORWALK CA
2012-12-04 562-377-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LAKEWOOD CA
2012-12-04 562-384-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LAKEWOOD CA
2012-12-04 562-396-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C DOWNEY CA
2012-12-04 562-416-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C DOWNEY CA
2012-12-04 562-456-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C PICORIVERA CA
2012-12-04 562-456-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C PICORIVERA CA
2012-12-04 562-592-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C ALAMITOS CA
2012-12-04 562-646-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C WHITTIER CA
2012-12-04 562-667-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C NORWALK CA
2012-12-04 562-781-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C WHITTIER CA
2012-12-04 562-967-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C WHITTIER CA
2012-11-30 562-228-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2012-11-30 562-246-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2012-11-30 562-263-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2012-11-30 562-278-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2012-11-19 562-340-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ALAMITOS CA
2012-11-13 562-263-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 NORWALK CA
2012-11-08 562-473-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 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.