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
2021-02-08 616-303-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GREENVILLE MI
2021-02-08 616-404-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CASNOVIA MI
2021-02-08 616-404-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CASNOVIA MI
2021-02-08 616-585-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CEDAR SPG MI
2021-02-08 616-585-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C CEDAR SPG MI
2021-02-08 616-625-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C CONKLIN MI
2021-02-08 616-625-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C CONKLIN MI
2021-02-08 616-693-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C CLARKSVL MI
2021-02-08 616-693-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C CLARKSVL MI
2021-02-08 616-747-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ROCKFORD MI
2021-02-08 616-747-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ROCKFORD MI
2021-02-08 616-766-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C BELDING MI
2021-02-08 616-766-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C BELDING MI
2021-02-04 616-266-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C TRUFANT MI
2021-02-04 616-266-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C TRUFANT MI
2021-02-04 616-636-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C SAND LAKE MI
2021-02-04 616-636-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C SAND LAKE MI
2021-02-04 616-879-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ZEELAND MI
2021-02-04 616-879-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ZEELAND MI
2021-01-29 616-317-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2021-01-29 616-317-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2021-01-29 616-317-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2021-01-29 616-317-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2021-01-29 616-317-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2021-01-29 616-317-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2021-01-29 616-387-1XXX 1000–1999Assigned IP HORIZON LLC 515J GRAND RPDS MI
2021-01-21 616-317-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2021-01-21 616-321-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2021-01-20 616-321-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2021-01-14 616-416-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2021-01-14 616-801-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2021-01-05 616-253-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MOLINE MI
2021-01-05 616-253-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C MOLINE MI
2021-01-05 616-310-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C COOPERSVL MI
2021-01-05 616-310-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C COOPERSVL MI
2021-01-05 616-310-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C COOPERSVL MI
2021-01-05 616-400-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C SARANAC MI
2021-01-05 616-400-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C SARANAC MI
2021-01-05 616-441-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LAKEODESSA MI
2021-01-05 616-441-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C LAKEODESSA MI
2021-01-05 616-449-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C FREEPORT MI
2021-01-05 616-449-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C FREEPORT MI
2021-01-05 616-483-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C DUTTON MI
2021-01-05 616-483-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C DUTTON MI
2021-01-05 616-535-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C SPARTA MI
2021-01-05 616-535-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C SPARTA MI
2021-01-05 616-535-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SPARTA MI
2021-01-05 616-545-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ORLEANS MI
2021-01-05 616-580-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C DORR MI
2021-01-05 616-580-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C DORR 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.