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
2016-02-24 616-239-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ZEELAND MI
2016-02-24 616-275-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2016-02-24 616-275-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2016-02-23 616-236-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C GREENVILLE MI
2016-02-23 616-236-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C GREENVILLE MI
2016-02-18 616-649-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2016-02-17 616-591-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2016-02-17 616-727-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C ADA MI
2016-02-17 616-727-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ADA MI
2016-02-09 616-377-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2016-02-09 616-377-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2016-02-08 616-649-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E GRAND RPDS MI
2016-01-11 616-216-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2016-01-11 616-227-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2016-01-11 616-227-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2016-01-11 616-469-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2015-12-31 616-522-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 IONIA MI
2015-12-31 616-888-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2015-12-30 616-420-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C ALTO MI
2015-12-10 616-734-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2015-12-08 616-266-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G TRUFANT MI
2015-12-04 616-333-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2015-12-03 616-227-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ADA MI
2015-12-03 616-333-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-12-03 616-333-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-12-03 616-345-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C BYRON CTR MI
2015-12-03 616-345-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C BYRON CTR MI
2015-12-03 616-469-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ADA MI
2015-12-02 616-326-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C ROCKFORD MI
2015-12-02 616-333-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-12-02 616-333-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-12-02 616-345-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C BYRON CTR MI
2015-12-02 616-421-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2015-12-02 616-469-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C ADA MI
2015-12-02 616-469-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ADA MI
2015-12-02 616-730-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C BYRON CTR MI
2015-12-02 616-931-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G ZEELAND MI
2015-12-02 616-986-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ALLENDALE MI
2015-12-02 616-987-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2015-11-30 616-253-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G MOLINE MI
2015-11-30 616-319-5XXX 5000–5999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G LOWELL MI
2015-11-30 616-326-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G ROCKFORD MI
2015-11-30 616-557-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G SAND LAKE MI
2015-11-30 616-577-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G SARANAC MI
2015-11-30 616-947-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G MARNE MI
2015-11-25 616-449-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G FREEPORT MI
2015-11-25 616-522-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G IONIA MI
2015-11-25 616-691-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G GRATTAN MI
2015-11-25 616-952-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G KENT CITY MI
2015-11-24 616-369-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C 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.