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
2026-09-09 616-398-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDHAVEN MI
2026-08-28 616-585-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CEDAR SPG MI
2026-08-20 616-297-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LOWELL MI
2026-08-06 616-398-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDHAVEN MI
2026-08-05 616-415-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2026-08-05 616-415-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J GRAND RPDS MI
2026-08-05 616-618-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2026-08-05 616-684-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2026-08-05 616-999-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2026-08-05 616-999-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2026-07-24 616-618-0XXX 0000–0999Assigned VOIP INNOVATIONS, LLC 597F GRAND RPDS MI
2026-07-22 616-409-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2026-07-22 616-413-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2026-07-22 616-413-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2026-07-08 616-398-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDHAVEN MI
2026-06-25 616-999-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2026-06-25 616-999-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2026-06-25 616-999-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2026-06-25 616-999-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2026-06-25 616-999-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2026-05-21 616-400-7XXX 7000–7999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G SARANAC MI
2026-05-11 616-761-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J ORLEANS MI
2026-05-08 616-398-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDHAVEN MI
2026-05-07 616-684-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2026-04-01 616-415-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2026-04-01 616-999-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2026-04-01 616-999-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2026-03-25 616-362-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G MOLINE MI
2026-03-05 616-875-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J BORCULO MI
2026-03-05 616-986-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J ALLENDALE MI
2026-03-02 616-346-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J HOLLAND MI
2026-02-09 616-400-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SARANAC MI
2026-02-03 616-346-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2026-01-27 616-684-0XXX 0000–0999Assigned WAVENATION, LLC 700J GRAND RPDS MI
2026-01-22 616-362-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOLINE MI
2026-01-13 616-999-9XXX 9000–9999Assigned AHOI LLC 883K GRAND RPDS MI
2026-01-12 616-348-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CALEDONIA MI
2025-12-15 616-585-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR SPG MI
2025-12-12 616-408-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GRAND RPDS MI
2025-12-12 616-408-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GRAND RPDS MI
2025-12-12 616-408-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GRAND RPDS MI
2025-12-12 616-415-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GRAND RPDS MI
2025-12-12 616-415-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GRAND RPDS MI
2025-11-19 616-585-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR SPG MI
2025-11-04 616-344-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLAND MI
2025-11-03 616-415-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2025-10-16 616-346-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2025-10-10 616-415-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2025-10-10 616-415-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2025-10-10 616-415-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS 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.