NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 616
NEW CINGULAR WIRELESS PCS, LLC - IL 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 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
2022-01-09 616-349-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2021-12-30 616-699-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-12-30 616-699-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-12-28 616-441-9XXX 9000–9999Assigned METROPCS, INC. 5562 LAKEODESSA MI
2021-12-22 616-612-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GRANDHAVEN MI
2021-11-30 616-358-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR SPG MI
2021-11-24 616-210-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ZEELAND MI
2021-11-18 616-354-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GREENVILLE MI
2021-11-18 616-354-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C GREENVILLE MI
2021-11-18 616-385-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E KENT CITY MI
2021-11-12 616-343-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GREENVILLE MI
2021-11-10 616-362-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MOLINE MI
2021-11-03 616-282-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H LOWELL MI
2021-11-03 616-282-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LOWELL MI
2021-11-03 616-310-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H COOPERSVL MI
2021-11-03 616-314-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ADA MI
2021-11-03 616-314-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ADA MI
2021-11-03 616-343-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H GREENVILLE MI
2021-11-03 616-343-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GREENVILLE MI
2021-11-03 616-348-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CALEDONIA MI
2021-11-03 616-348-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CALEDONIA MI
2021-11-03 616-358-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CEDAR SPG MI
2021-11-03 616-358-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CEDAR SPG MI
2021-11-03 616-879-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ZEELAND MI
2021-11-03 616-879-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ZEELAND MI
2021-11-02 616-315-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-11-02 616-315-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-11-02 616-315-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-11-02 616-321-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2021-11-02 616-321-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2021-11-02 616-341-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2021-11-02 616-349-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-11-02 616-349-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-11-02 616-699-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-11-02 616-699-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-10-29 616-273-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MARNE MI
2021-10-29 616-273-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MARNE MI
2021-10-29 616-342-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2021-10-29 616-342-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2021-10-29 616-342-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2021-10-29 616-898-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ALTO MI
2021-10-29 616-898-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ALTO MI
2021-10-29 616-984-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H TRUFANT MI
2021-10-28 616-282-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2021-10-28 616-282-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2021-10-28 616-348-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2021-10-28 616-348-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2021-10-21 616-537-9XXX 9000–9999Assigned METROPCS, INC. 5562 LAKEODESSA MI
2021-10-20 616-321-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HOLLAND MI
2021-10-20 616-321-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H HOLLAND MI

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.