NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 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 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
2021-05-20 616-489-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H IONIA MI
2021-05-20 616-524-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H GRATTAN MI
2021-05-20 616-580-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H DORR MI
2021-05-20 616-612-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H GRANDHAVEN MI
2021-05-20 616-625-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CONKLIN MI
2021-05-20 616-693-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CLARKSVL MI
2021-05-20 616-757-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C BORCULO MI
2021-05-20 616-757-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C BORCULO MI
2021-05-20 616-797-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HUDSONVL MI
2021-05-20 616-800-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H JAMESTOWN MI
2021-05-19 616-271-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CALEDONIA MI
2021-05-19 616-274-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ADA MI
2021-05-19 616-276-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ALTO MI
2021-05-19 616-358-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CEDAR SPG MI
2021-05-19 616-515-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CASNOVIA MI
2021-05-19 616-757-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BORCULO MI
2021-05-19 616-766-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BELDING MI
2021-05-13 616-612-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDHAVEN MI
2021-05-10 616-898-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J ALTO MI
2021-05-08 616-535-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G SPARTA MI
2021-04-27 616-306-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2021-04-27 616-306-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2021-04-27 616-327-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2021-04-27 616-330-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2021-04-27 616-387-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2021-04-27 616-387-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2021-04-26 616-271-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CALEDONIA MI
2021-04-23 616-387-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-04-23 616-387-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2021-04-07 616-433-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J ROCKFORD MI
2021-04-05 616-986-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ALLENDALE MI
2021-03-31 616-317-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2021-03-26 616-631-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C MOLINE MI
2021-03-25 616-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H GRAND RPDS MI
2021-03-22 616-358-1XXX 1000–1999Assigned STRATUS NETWORKS 495J CEDAR SPG MI
2021-03-15 616-317-0XXX 0000–0999Assigned TELNET WORLDWIDE, INC. 817J GRAND RPDS MI
2021-03-04 616-799-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CEDAR SPG MI
2021-02-25 616-545-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ORLEANS MI
2021-02-25 616-548-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GREENVILLE MI
2021-02-08 616-207-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2021-02-08 616-207-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2021-02-08 616-271-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2021-02-08 616-271-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2021-02-08 616-274-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ADA MI
2021-02-08 616-274-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ADA MI
2021-02-08 616-276-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ALTO MI
2021-02-08 616-276-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ALTO MI
2021-02-08 616-300-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2021-02-08 616-300-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2021-02-08 616-303-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GREENVILLE MI

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.