NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

25 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 475
ONVOY, LLC - CT 17
BANDWIDTH.COM CLEC, LLC - CT 4
CSC WIRELESS, LLC 3
OMNIPOINT COMMUNICATIONS, INC. - CT 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
2022-01-24 475-342-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 ANSONIDRBY CT
2022-01-24 475-342-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 ANSONIDRBY CT
2022-01-24 475-342-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 ANSONIDRBY CT
2022-01-24 475-351-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BRIDGEPORT CT
2022-01-24 475-351-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BRIDGEPORT CT
2022-01-24 475-382-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J BRANFORD CT
2022-01-24 475-426-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H RIDGEFIELD CT
2022-01-24 475-426-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H RIDGEFIELD CT
2022-01-24 475-463-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SEYMOUR CT
2022-01-24 475-463-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SEYMOUR CT
2022-01-24 475-466-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MADISON CT
2022-01-24 475-466-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MADISON CT
2022-01-24 475-501-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GEORGETOWN CT
2022-01-24 475-501-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H GEORGETOWN CT
2022-01-24 475-673-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H NORWALK CT
2022-01-24 475-673-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H NORWALK CT
2022-01-24 475-763-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H NAUGATUCK CT
2022-01-24 475-763-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H NAUGATUCK CT
2022-01-24 475-877-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H REDDING CT
2022-01-24 475-887-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H WESTPORT CT
2022-01-24 475-887-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H WESTPORT CT
2022-01-20 475-303-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GREENWICH CT
2022-01-18 475-463-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J SEYMOUR CT
2022-01-18 475-763-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J NAUGATUCK CT
2022-01-17 475-622-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J WOLCOTT CT
2022-01-14 475-286-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BRANFORD CT
2022-01-14 475-286-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BRANFORD CT
2022-01-14 475-305-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 WATERBURY CT
2022-01-14 475-308-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H NEW HAVEN CT
2022-01-14 475-308-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H NEW HAVEN CT
2022-01-14 475-316-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 WATERBURY CT
2022-01-14 475-316-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 WATERBURY CT
2022-01-14 475-351-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 BRIDGEPORT CT
2022-01-14 475-351-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 BRIDGEPORT CT
2022-01-14 475-351-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 BRIDGEPORT CT
2022-01-14 475-351-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 BRIDGEPORT CT
2022-01-14 475-351-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 BRIDGEPORT CT
2022-01-14 475-351-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 BRIDGEPORT CT
2022-01-14 475-351-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 BRIDGEPORT CT
2022-01-14 475-377-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 WATERBURY CT
2022-01-14 475-544-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 NORWALK CT
2022-01-14 475-544-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 NORWALK CT
2022-01-14 475-544-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 NORWALK CT
2022-01-14 475-544-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 NORWALK CT
2022-01-14 475-746-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 STAMFORD CT
2022-01-14 475-746-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 STAMFORD CT
2022-01-14 475-746-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 STAMFORD CT
2022-01-14 475-746-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 STAMFORD CT
2022-01-13 475-327-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J MILFORD CT
2022-01-13 475-426-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J RIDGEFIELD CT

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.