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
2023-07-27 616-348-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2023-07-27 616-385-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C KENT CITY MI
2023-07-21 616-280-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2023-07-21 616-280-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2023-07-19 616-346-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2023-07-14 616-305-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C BYRON CTR MI
2023-07-14 616-357-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ADA MI
2023-07-14 616-919-8XXX 8000–8999Assigned METROPCS, INC. 5562 DRENTHE MI
2023-07-14 616-919-9XXX 9000–9999Assigned METROPCS, INC. 5562 DRENTHE MI
2023-07-13 616-342-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2023-07-13 616-346-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2023-07-13 616-372-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C COOPERSVL MI
2023-07-13 616-597-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IONIA MI
2023-07-13 616-797-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2023-07-13 616-867-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C ROCKFORD MI
2023-07-07 616-515-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J CASNOVIA MI
2023-07-06 616-297-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2023-07-03 616-221-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2023-07-03 616-221-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2023-06-26 616-203-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G BELDING MI
2023-06-26 616-221-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2023-06-26 616-221-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2023-06-26 616-221-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2023-06-26 616-221-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2023-06-26 616-342-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G HUDSONVL MI
2023-06-15 616-223-5XXX 5000–5999Assigned METROPCS, INC. 5562 GRANDHAVEN MI
2023-06-14 616-280-2XXX 2000–2999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2023-06-13 616-280-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2023-06-13 616-280-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2023-06-13 616-367-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2023-06-13 616-367-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2023-06-13 616-758-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDHAVEN MI
2023-06-09 616-223-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2023-06-09 616-314-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C ADA MI
2023-06-09 616-342-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2023-06-09 616-342-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2023-06-09 616-372-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C COOPERSVL MI
2023-06-09 616-801-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2023-06-09 616-883-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ROCKFORD MI
2023-06-09 616-980-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2023-06-08 616-280-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2023-06-08 616-280-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2023-05-24 616-203-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BELDING MI
2023-05-22 616-693-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CLARKSVL MI
2023-05-16 616-483-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7157 DUTTON MI
2023-05-04 616-290-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2023-04-19 616-597-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 IONIA MI
2023-04-19 616-597-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 IONIA MI
2023-04-18 616-585-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CEDAR SPG MI
2023-04-18 616-801-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J HOLLAND 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.