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
2013-11-01 562-393-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2013-11-01 562-393-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2013-10-30 562-417-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D DOWNEY CA
2013-10-21 562-383-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J LA HABRA CA
2013-10-17 562-800-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LONG BEACH CA
2013-10-14 562-384-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAKEWOOD CA
2013-10-14 562-444-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAKEWOOD CA
2013-10-14 562-450-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DOWNEY CA
2013-10-14 562-659-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DOWNEY CA
2013-10-14 562-674-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DOWNEY CA
2013-10-04 562-247-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LONG BEACH CA
2013-09-26 562-469-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DOWNEY CA
2013-09-09 562-977-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NORWALK CA
2013-08-23 562-666-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C ALAMITOS CA
2013-08-05 562-247-2XXX 2000–2999Assigned PACIFIC BELL (COMPETITIVE) 7480 LONG BEACH CA
2013-08-01 562-347-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D WHITTIER CA
2013-07-26 562-247-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LONG BEACH CA
2013-07-24 562-248-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ALAMITOS CA
2013-07-23 562-842-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K PICORIVERA CA
2013-07-22 562-794-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K ALAMITOS CA
2013-07-10 562-276-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LONG BEACH CA
2013-06-26 562-986-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2013-06-11 562-363-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K CMTN CMTN CA
2013-06-10 562-273-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 WHITTIER CA
2013-05-09 562-419-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 DOWNEY CA
2013-05-08 562-395-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PICORIVERA CA
2013-05-08 562-551-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PICORIVERA CA
2013-04-25 562-444-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAKEWOOD CA
2013-04-03 562-202-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NORWALK CA
2013-04-03 562-202-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NORWALK CA
2013-03-28 562-354-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LAKEWOOD CA
2013-03-20 562-489-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LONG BEACH CA
2013-03-19 562-202-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NORWALK CA
2013-03-19 562-240-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K ALAMITOS CA
2013-03-19 562-273-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K WHITTIER CA
2013-03-19 562-381-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K DOWNEY CA
2013-03-19 562-448-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K LA HABRA CA
2013-03-19 562-541-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K LAKEWOOD CA
2013-03-19 562-821-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K PICORIVERA CA
2013-03-12 562-248-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J ALAMITOS CA
2013-03-12 562-363-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K CMTN CMTN CA
2013-03-12 562-553-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2013-03-12 562-553-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2013-03-04 562-332-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F WHITTIER CA
2013-03-04 562-383-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LA HABRA CA
2013-03-04 562-419-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F DOWNEY CA
2013-03-04 562-419-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F DOWNEY CA
2013-03-04 562-444-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LAKEWOOD CA
2013-03-04 562-551-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PICORIVERA CA
2013-03-04 562-742-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F 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.