NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 734
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 1
EXIANT COMMUNICATIONS LLC 1
AHOI LLC 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
2021-01-04 734-583-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C BELLEVILLE MI
2021-01-04 734-583-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C BELLEVILLE MI
2021-01-04 734-600-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C NEWPORT MI
2021-01-04 734-600-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C NEWPORT MI
2021-01-04 734-600-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C NEWPORT MI
2021-01-04 734-694-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C WHITMORELK MI
2021-01-04 734-694-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C WHITMORELK MI
2021-01-04 734-715-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C LAMBERTVL MI
2021-01-04 734-715-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C LAMBERTVL MI
2021-01-04 734-715-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C LAMBERTVL MI
2021-01-04 734-715-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LAMBERTVL MI
2021-01-04 734-733-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C CARLETON MI
2021-01-04 734-733-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CARLETON MI
2021-01-04 734-897-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C FLAT ROCK MI
2021-01-04 734-897-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C FLAT ROCK MI
2021-01-04 734-966-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LOSTPNNSUL MI
2021-01-04 734-966-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LOSTPNNSUL MI
2021-01-04 734-966-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C LOSTPNNSUL MI
2021-01-04 734-966-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C LOSTPNNSUL MI
2020-12-31 734-236-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C ROCKWOOD MI
2020-12-31 734-471-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ROCKWOOD MI
2020-12-31 734-471-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ROCKWOOD MI
2020-12-31 734-628-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C MILAN MI
2020-12-31 734-628-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C MILAN MI
2020-12-31 734-724-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C DEXTER MI
2020-12-31 734-724-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C DEXTER MI
2020-12-31 734-724-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C DEXTER MI
2020-12-31 734-807-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C TEMPERANCE MI
2020-12-31 734-807-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C TEMPERANCE MI
2020-12-21 734-302-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J ANN ARBOR MI
2020-12-21 734-333-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J WHITMORELK MI
2020-12-21 734-480-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J YPSILANTI MI
2020-12-18 734-488-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C CHELSEA MI
2020-12-18 734-488-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CHELSEA MI
2020-12-18 734-488-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CHELSEA MI
2020-12-18 734-488-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C CHELSEA MI
2020-12-18 734-488-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CHELSEA MI
2020-12-11 734-264-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C MONROE MI
2020-12-11 734-349-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C MONROE MI
2020-12-11 734-621-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C MONROE MI
2020-12-08 734-280-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2020-12-08 734-280-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2020-12-08 734-318-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2020-12-08 734-346-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C TRENTON MI
2020-12-08 734-346-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C TRENTON MI
2020-12-08 734-405-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C WAYNE MI
2020-12-08 734-407-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2020-12-08 734-423-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C WAYNE MI
2020-12-08 734-423-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C WAYNE MI
2020-12-08 734-423-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C WAYNE 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.