NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

24 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 747
ONVOY, LLC - CA 12
EXIANT COMMUNICATIONS LLC 5
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
NEW CINGULAR WIRELESS PCS, LLC 2
BANDWIDTH.COM CLEC, LLC - CA 2
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
2012-10-05 747-600-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNFN GRHL CA
2012-10-05 747-600-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNFN GRHL CA
2012-09-28 747-400-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2012-09-17 747-900-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2012-09-17 747-900-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2012-08-14 747-444-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2012-08-03 747-222-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AGOURA CA
2012-07-17 747-201-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRBN BRBN CA
2012-06-22 747-600-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNFN GRHL CA
2012-06-06 747-400-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2012-06-06 747-600-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2012-06-06 747-666-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C AGOURA CA
2012-06-06 747-666-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C AGOURA CA
2012-06-06 747-666-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C AGOURA CA
2012-06-06 747-666-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C AGOURA CA
2012-06-06 747-666-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C AGOURA CA
2012-06-06 747-666-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C AGOURA CA
2012-06-06 747-800-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2012-06-06 747-800-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2012-06-06 747-800-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2012-06-06 747-800-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2012-06-06 747-800-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2012-06-05 747-201-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2012-06-05 747-201-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2012-06-05 747-999-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFN SNFN CA
2012-05-30 747-800-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2012-05-30 747-800-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2012-05-29 747-888-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K CANOGAPARK CA
2012-05-23 747-800-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CANOGAPARK CA
2012-04-17 747-224-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORTHRIDGE CA
2012-03-20 747-201-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BRBN BRBN CA
2012-03-20 747-201-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2012-02-28 747-200-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRBN BRBN CA
2012-02-28 747-200-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRBN BRBN CA
2012-02-01 747-222-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AGOURA CA
2012-01-06 747-400-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2012-01-06 747-400-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2012-01-06 747-600-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2012-01-06 747-600-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2012-01-06 747-800-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2012-01-06 747-800-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2011-11-21 747-201-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BRBN BRBN CA
2011-10-19 747-222-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2011-10-19 747-222-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2011-10-05 747-888-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CANOGAPARK CA
2011-09-19 747-888-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CANOGAPARK CA
2011-08-30 747-200-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2011-08-23 747-200-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2011-07-01 747-888-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2011-06-30 747-200-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN BRBN CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.