NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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 773
ONVOY, LLC 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
2021-08-27 773-862-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J CHICGOZN04 IL
2021-08-18 773-823-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2021-08-18 773-920-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2021-08-02 773-241-8XXX 8000–8999Assigned COMMIO, LLC 939H CHICGOZN07 IL
2021-08-02 773-373-1XXX 1000–1999Assigned COMMIO, LLC 939H CHICGOZN07 IL
2021-08-02 773-451-7XXX 7000–7999Assigned COMMIO, LLC 939H CHICGOZN07 IL
2021-08-02 773-635-5XXX 5000–5999Assigned COMMIO, LLC 939H CHICGOZN06 IL
2021-08-02 773-635-9XXX 9000–9999Assigned COMMIO, LLC 939H CHICGOZN06 IL
2021-08-02 773-643-3XXX 3000–3999Assigned COMMIO, LLC 939H CHICGOZN07 IL
2021-08-02 773-643-5XXX 5000–5999Assigned COMMIO, LLC 939H CHICGOZN07 IL
2021-08-02 773-940-7XXX 7000–7999Assigned COMMIO, LLC 939H CHICGOZN06 IL
2021-08-02 773-940-8XXX 8000–8999Assigned COMMIO, LLC 939H CHICGOZN06 IL
2021-08-02 773-940-9XXX 9000–9999Assigned COMMIO, LLC 939H CHICGOZN06 IL
2021-07-27 773-389-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN09 IL
2021-07-27 773-389-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN09 IL
2021-07-26 773-946-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN10 IL
2021-07-13 773-596-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2021-07-13 773-596-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2021-07-13 773-596-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2021-07-13 773-596-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2021-07-01 773-352-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 773-352-1XXX 1000–1999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 773-352-2XXX 2000–2999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 773-352-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 773-352-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 773-352-5XXX 5000–5999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 773-352-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 773-352-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 773-352-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 773-352-9XXX 9000–9999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2021-06-18 773-253-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J CHICGOZN10 IL
2021-06-11 773-302-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2021-06-11 773-408-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL
2021-06-11 773-408-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL
2021-06-11 773-408-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL
2021-06-11 773-649-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2021-06-11 773-649-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2021-06-11 773-649-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2021-06-11 773-739-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2021-06-11 773-754-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2021-06-11 773-828-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2021-06-11 773-828-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2021-06-11 773-828-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2021-06-11 773-828-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2021-06-11 773-977-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2021-05-20 773-902-9XXX 9000–9999Assigned IP HORIZON LLC 515J CHICGOZN09 IL
2021-05-19 773-408-1XXX 1000–1999Assigned IP HORIZON LLC 515J CHICGOZN06 IL
2021-05-19 773-596-0XXX 0000–0999Assigned IP HORIZON LLC 515J CHICGOZN02 IL
2021-05-08 773-638-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J CHICGOZN06 IL
2021-04-22 773-635-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL

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.