NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 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 669
BANDWIDTH.COM CLEC, LLC - CA 7
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 3
T-MOBILE USA, INC. 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
2013-12-02 669-231-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNJS WEST CA
2013-12-02 669-253-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MORGANHILL CA
2013-11-13 669-221-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LOS GATOS CA
2013-11-12 669-333-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS SOUTH CA
2013-11-11 669-224-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SUNNYVALE CA
2013-11-08 669-221-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LOS GATOS CA
2013-11-06 669-900-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNJS NORTH CA
2013-11-01 669-221-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LOS GATOS CA
2013-11-01 669-221-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C LOS GATOS CA
2013-10-18 669-333-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNJS SOUTH CA
2013-10-18 669-333-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNJS SOUTH CA
2013-10-17 669-400-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNJS SOUTH CA
2013-08-23 669-777-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SUNNYVALE CA
2013-08-15 669-600-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SUNNYVALE CA
2013-07-01 669-223-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 SNJS WEST CA
2013-07-01 669-223-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 SNJS WEST CA
2013-07-01 669-223-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 SNJS WEST CA
2013-07-01 669-223-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 SNJS WEST CA
2013-07-01 669-223-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 SNJS WEST CA
2013-06-26 669-721-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SUNNYVALE CA
2013-06-26 669-721-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SUNNYVALE CA
2013-06-26 669-721-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SUNNYVALE CA
2013-06-20 669-400-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNJS SOUTH CA
2013-06-17 669-500-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GILROY CA
2013-06-17 669-666-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNJS WEST CA
2013-06-07 669-888-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MORGANHILL CA
2013-06-03 669-300-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CAMPBELL CA
2013-05-28 669-222-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAMPBELL CA
2013-05-24 669-333-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNJS SOUTH CA
2013-05-23 669-721-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SUNNYVALE CA
2013-05-14 669-227-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-14 669-227-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-14 669-227-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-14 669-227-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-14 669-227-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-14 669-227-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-14 669-227-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-14 669-227-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-14 669-227-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-14 669-227-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SNJS WEST CA
2013-05-10 669-400-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS SOUTH CA
2013-05-09 669-400-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNJS SOUTH CA
2013-05-09 669-800-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS WEST CA
2013-05-09 669-800-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS WEST CA
2013-04-26 669-600-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SUNNYVALE CA
2013-04-16 669-222-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAMPBELL CA
2013-04-15 669-888-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MORGANHILL CA
2013-04-08 669-600-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SUNNYVALE CA
2013-04-05 669-300-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2013-04-03 669-777-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SUNNYVALE 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.