NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

11 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2015-10-01 669-266-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS WEST CA
2015-09-24 669-248-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SUNNYVALE CA
2015-09-22 669-264-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SUNNYVALE CA
2015-09-22 669-264-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SUNNYVALE CA
2015-09-22 669-264-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SUNNYVALE CA
2015-09-16 669-265-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNJS NORTH CA
2015-09-15 669-243-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNJS WEST CA
2015-09-15 669-243-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNJS WEST CA
2015-09-14 669-255-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNJS SOUTH CA
2015-09-14 669-255-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SNJS SOUTH CA
2015-09-04 669-267-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SARATOGA CA
2015-09-03 669-255-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS SOUTH CA
2015-09-03 669-255-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS SOUTH CA
2015-09-01 669-265-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNJS NORTH CA
2015-09-01 669-265-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNJS NORTH CA
2015-08-28 669-261-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS NORTH CA
2015-08-28 669-261-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS NORTH CA
2015-08-25 669-253-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MORGANHILL CA
2015-08-25 669-255-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS SOUTH CA
2015-08-25 669-258-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MORGANHILL CA
2015-08-25 669-327-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GILROY CA
2015-08-19 669-264-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SUNNYVALE CA
2015-08-17 669-255-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SNJS SOUTH CA
2015-08-13 669-248-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SUNNYVALE CA
2015-08-03 669-292-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNJS WEST CA
2015-07-31 669-264-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SUNNYVALE CA
2015-07-31 669-264-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SUNNYVALE CA
2015-07-30 669-294-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2015-07-30 669-294-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2015-07-30 669-294-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2015-07-30 669-294-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2015-07-30 669-294-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2015-07-30 669-294-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2015-07-29 669-242-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS WEST CA
2015-07-27 669-263-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNJS NORTH CA
2015-07-24 669-294-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAMPBELL CA
2015-07-22 669-263-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS NORTH CA
2015-07-17 669-294-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAMPBELL CA
2015-07-15 669-256-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SARATOGA CA
2015-07-06 669-263-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS NORTH CA
2015-07-01 669-243-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS WEST CA
2015-07-01 669-256-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SARATOGA CA
2015-07-01 669-263-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS NORTH CA
2015-06-29 669-243-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNJS WEST CA
2015-06-29 669-255-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNJS SOUTH CA
2015-06-29 669-294-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAMPBELL CA
2015-06-18 669-327-1XXX 1000–1999Assigned METROPCS, INC. 5562 GILROY CA
2015-06-18 669-327-3XXX 3000–3999Assigned METROPCS, INC. 5562 GILROY CA
2015-06-17 669-220-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS WEST CA
2015-06-17 669-220-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS WEST CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.