NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

35 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 925
ONVOY, LLC - CA 24
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 5
BANDWIDTH.COM CLEC, LLC - CA 2
TELNYX LLC 1
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
2022-03-14 925-226-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PLEASANTON CA
2022-03-12 925-832-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ECONTRCOST CA
2022-03-08 925-848-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANTIOCH CA
2022-02-08 925-812-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MARTINEZ CA
2022-02-08 925-917-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MARTINEZ CA
2022-01-31 925-492-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C PITTSBURG CA
2022-01-31 925-492-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C PITTSBURG CA
2022-01-31 925-832-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J ECONTRCOST CA
2022-01-28 925-496-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CONCORD CA
2022-01-14 925-537-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J LIVERMORE CA
2022-01-09 925-758-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LIVERMORE CA
2022-01-07 925-546-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J WALNUT CRK CA
2021-12-23 925-496-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CONCORD CA
2021-12-15 925-515-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CONCORD CA
2021-11-17 925-365-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BSHP RNCH CA
2021-11-17 925-365-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BSHP RNCH CA
2021-11-15 925-291-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H PSBG WEST CA
2021-11-15 925-492-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PITTSBURG CA
2021-11-15 925-492-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PITTSBURG CA
2021-11-15 925-517-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PSBG WEST CA
2021-11-15 925-533-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 LIVERMORE CA
2021-11-15 925-834-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2021-11-15 925-834-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2021-11-15 925-834-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2021-11-15 925-834-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2021-11-08 925-515-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CONCORD CA
2021-10-22 925-599-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LIVERMORE CA
2021-10-22 925-599-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LIVERMORE CA
2021-10-20 925-476-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H WALNUT CRK CA
2021-10-20 925-722-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H WALNUT CRK CA
2021-10-20 925-722-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H WALNUT CRK CA
2021-10-20 925-722-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WALNUT CRK CA
2021-10-20 925-834-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ANTIOCH CA
2021-10-20 925-834-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H ANTIOCH CA
2021-10-20 925-834-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ANTIOCH CA
2021-10-20 925-834-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ANTIOCH CA
2021-10-20 925-834-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ANTIOCH CA
2021-10-20 925-880-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ECONTRCOST CA
2021-10-20 925-880-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ECONTRCOST CA
2021-10-20 925-880-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ECONTRCOST CA
2021-10-20 925-880-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ECONTRCOST CA
2021-10-20 925-880-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ECONTRCOST CA
2021-10-18 925-515-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CONCORD CA
2021-10-15 925-835-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SUNOL CA
2021-10-15 925-860-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SUNOL CA
2021-10-08 925-232-9XXX 9000–9999Assigned TELNYX LLC 073H PSBG WEST CA
2021-10-08 925-492-3XXX 3000–3999Assigned TELNYX LLC 073H PITTSBURG CA
2021-10-08 925-644-8XXX 8000–8999Assigned TELNYX LLC 073H CONCORD CA
2021-10-08 925-993-4XXX 4000–4999Assigned TELNYX LLC 073H CLAYTON CA
2021-09-29 925-834-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J ANTIOCH 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.