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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-11-26 616-277-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G BYRON CTR MI
2019-11-26 616-580-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G DORR MI
2019-11-20 616-344-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2019-11-20 616-344-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2019-11-20 616-344-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2019-10-22 616-416-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2019-10-22 616-416-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2019-10-22 616-416-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2019-10-21 616-900-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2019-10-16 616-286-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E GRAND RPDS MI
2019-10-08 616-210-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ZEELAND MI
2019-10-08 616-273-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARNE MI
2019-10-08 616-273-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARNE MI
2019-10-08 616-286-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2019-10-03 616-256-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2019-10-03 616-256-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2019-10-03 616-256-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2019-09-25 616-500-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2019-09-16 616-306-1XXX 1000–1999Assigned EXIANT COMMUNICATIONS LLC 114J GRAND RPDS MI
2019-09-11 616-286-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E GRAND RPDS MI
2019-09-10 616-900-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2019-08-21 616-344-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2019-08-20 616-256-8XXX 8000–8999Assigned 123.NET, LLC 2550 GRAND RPDS MI
2019-08-20 616-352-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-20 616-352-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-20 616-352-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-20 616-352-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-20 616-352-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-20 616-352-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-20 616-352-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-20 616-352-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-20 616-352-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-20 616-352-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS MI
2019-08-05 616-655-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2019-07-08 616-585-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CEDAR SPG MI
2019-06-18 616-330-1XXX 1000–1999Assigned VOIP INNOVATIONS, LLC 597F GRAND RPDS MI
2019-05-15 616-535-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SPARTA MI
2019-05-14 616-300-0XXX 0000–0999Assigned FRACTEL, LLC 965H HUDSONVL MI
2019-05-14 616-300-3XXX 3000–3999Assigned FRACTEL, LLC 965H HUDSONVL MI
2019-05-14 616-600-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2019-05-14 616-600-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2019-05-14 616-600-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2019-05-08 616-217-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BYRON CTR MI
2019-05-08 616-344-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLAND MI
2019-05-07 616-900-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2019-05-06 616-273-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARNE MI
2019-05-03 616-274-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ADA MI
2019-04-23 616-286-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2019-04-23 616-286-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2019-04-23 616-286-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS 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.