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
2015-11-24 616-369-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-11-24 616-369-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-11-24 616-369-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-11-24 616-369-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-11-24 616-369-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-11-24 616-369-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-11-24 616-369-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-11-24 616-369-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-11-24 616-369-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-11-24 616-681-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G DORR MI
2015-11-23 616-275-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G CALEDONIA MI
2015-11-23 616-345-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G BYRON CTR MI
2015-11-23 616-504-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G CLARKSVL MI
2015-11-20 616-208-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G BELDING MI
2015-11-20 616-420-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G ALTO MI
2015-11-18 616-888-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2015-11-17 616-333-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J GRAND RPDS MI
2015-11-10 616-414-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDHAVEN MI
2015-11-03 616-275-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CALEDONIA MI
2015-10-07 616-377-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOLLAND MI
2015-10-07 616-377-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2015-10-06 616-383-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C SPARTA MI
2015-10-01 616-236-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G GREENVILLE MI
2015-10-01 616-377-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G HOLLAND MI
2015-09-25 616-345-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BYRON CTR MI
2015-09-24 616-827-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2015-09-23 616-383-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G SPARTA MI
2015-09-11 616-888-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2015-09-11 616-888-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2015-08-25 616-333-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2015-08-21 616-215-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDHAVEN MI
2015-08-21 616-368-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2015-08-18 616-239-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ZEELAND MI
2015-08-18 616-333-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-08-18 616-333-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-08-18 616-333-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2015-08-18 616-383-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SPARTA MI
2015-08-18 616-984-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TRUFANT MI
2015-08-17 616-253-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOLINE MI
2015-08-17 616-545-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ORLEANS MI
2015-08-17 616-557-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SAND LAKE MI
2015-08-17 616-577-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SARANAC MI
2015-08-17 616-947-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARNE MI
2015-08-17 616-951-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROCKFORD MI
2015-08-13 616-449-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FREEPORT MI
2015-08-13 616-512-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DUTTON MI
2015-08-13 616-552-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2015-08-13 616-681-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DORR MI
2015-08-13 616-899-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CONKLIN MI
2015-08-12 616-215-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRANDHAVEN 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.