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
2021-09-28 925-351-1XXX 1000–1999Assigned TELNYX LLC 073H PLEASANTON CA
2021-09-24 925-492-0XXX 0000–0999Assigned COMMIO, LLC 939H PITTSBURG CA
2021-09-24 925-492-1XXX 1000–1999Assigned COMMIO, LLC 939H PITTSBURG CA
2021-09-24 925-492-2XXX 2000–2999Assigned COMMIO, LLC 939H PITTSBURG CA
2021-09-21 925-597-6XXX 6000–6999Assigned COMMIO, LLC 939H PITTSBURG CA
2021-09-17 925-298-1XXX 1000–1999Assigned TELNYX LLC 073H LAFAYETTE CA
2021-09-17 925-897-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DUBLN-SNRM CA
2021-09-17 925-897-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DUBLN-SNRM CA
2021-09-15 925-633-0XXX 0000–0999Assigned COMMIO, LLC 939H CONCORD CA
2021-09-15 925-633-1XXX 1000–1999Assigned COMMIO, LLC 939H CONCORD CA
2021-09-15 925-633-2XXX 2000–2999Assigned COMMIO, LLC 939H CONCORD CA
2021-09-15 925-633-8XXX 8000–8999Assigned COMMIO, LLC 939H CONCORD CA
2021-09-15 925-633-9XXX 9000–9999Assigned COMMIO, LLC 939H CONCORD CA
2021-09-15 925-643-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PSBG WEST CA
2021-09-15 925-892-0XXX 0000–0999Assigned COMMIO, LLC 939H PLEASANTON CA
2021-09-15 925-892-5XXX 5000–5999Assigned COMMIO, LLC 939H PLEASANTON CA
2021-09-15 925-892-6XXX 6000–6999Assigned COMMIO, LLC 939H PLEASANTON CA
2021-09-15 925-892-7XXX 7000–7999Assigned COMMIO, LLC 939H PLEASANTON CA
2021-09-15 925-905-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DUBLN-SNRM CA
2021-09-13 925-269-0XXX 0000–0999Assigned COMMIO, LLC 939H MARTINEZ CA
2021-09-13 925-269-1XXX 1000–1999Assigned COMMIO, LLC 939H MARTINEZ CA
2021-09-13 925-269-3XXX 3000–3999Assigned COMMIO, LLC 939H MARTINEZ CA
2021-09-13 925-733-1XXX 1000–1999Assigned COMMIO, LLC 939H DANVILLE CA
2021-09-13 925-733-2XXX 2000–2999Assigned COMMIO, LLC 939H DANVILLE CA
2021-09-13 925-733-4XXX 4000–4999Assigned COMMIO, LLC 939H DANVILLE CA
2021-09-10 925-445-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2021-09-10 925-966-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2021-09-10 925-966-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2021-09-10 925-966-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2021-09-10 925-966-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2021-09-08 925-203-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C PITTSBURG CA
2021-09-08 925-722-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C WALNUT CRK CA
2021-09-08 925-722-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C WALNUT CRK CA
2021-09-08 925-722-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C WALNUT CRK CA
2021-09-08 925-722-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C WALNUT CRK CA
2021-09-01 925-377-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J MORAGA CA
2021-08-31 925-633-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C CONCORD CA
2021-08-31 925-633-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CONCORD CA
2021-08-31 925-633-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CONCORD CA
2021-08-31 925-633-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CONCORD CA
2021-08-31 925-966-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ANTIOCH CA
2021-08-31 925-966-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C ANTIOCH CA
2021-08-31 925-966-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C ANTIOCH CA
2021-08-31 925-966-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C ANTIOCH CA
2021-08-19 925-319-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SUNOL CA
2021-08-19 925-722-0XXX 0000–0999Assigned COMMIO, LLC 939H WALNUT CRK CA
2021-08-19 925-722-1XXX 1000–1999Assigned COMMIO, LLC 939H WALNUT CRK CA
2021-08-10 925-733-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DANVILLE CA
2021-08-10 925-733-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DANVILLE CA
2021-08-10 925-733-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DANVILLE 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.