NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

3 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 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
2021-10-05 734-290-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C DUNDEE MI
2021-09-17 734-880-0XXX 0000–0999Assigned SKYE TELECOM LLC DBA SKYETEL 622J NOSYLVANIA MI
2021-09-16 734-337-9XXX 9000–9999Assigned COMMIO, LLC 939H YPSILANTI MI
2021-09-16 734-448-9XXX 9000–9999Assigned COMMIO, LLC 939H YPSILANTI MI
2021-09-16 734-463-0XXX 0000–0999Assigned COMMIO, LLC 939H PLYMOUTH MI
2021-09-16 734-463-9XXX 9000–9999Assigned COMMIO, LLC 939H PLYMOUTH MI
2021-09-16 734-596-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-596-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-596-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-596-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-596-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-596-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-596-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-596-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-596-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-596-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-16 734-601-3XXX 3000–3999Assigned COMMIO, LLC 939H LIVONIA MI
2021-09-16 734-737-6XXX 6000–6999Assigned COMMIO, LLC 939H PLYMOUTH MI
2021-09-16 734-884-1XXX 1000–1999Assigned COMMIO, LLC 939H LIVONIA MI
2021-09-16 734-884-2XXX 2000–2999Assigned COMMIO, LLC 939H LIVONIA MI
2021-09-16 734-884-9XXX 9000–9999Assigned COMMIO, LLC 939H LIVONIA MI
2021-09-15 734-472-0XXX 0000–0999Assigned COMMIO, LLC 939H TRENTON MI
2021-09-15 734-472-9XXX 9000–9999Assigned COMMIO, LLC 939H TRENTON MI
2021-09-15 734-493-8XXX 8000–8999Assigned COMMIO, LLC 939H TRENTON MI
2021-09-15 734-581-0XXX 0000–0999Assigned COMMIO, LLC 939H MONROE MI
2021-09-15 734-581-1XXX 1000–1999Assigned COMMIO, LLC 939H MONROE MI
2021-09-15 734-581-3XXX 3000–3999Assigned COMMIO, LLC 939H MONROE MI
2021-09-15 734-581-4XXX 4000–4999Assigned COMMIO, LLC 939H MONROE MI
2021-09-15 734-642-0XXX 0000–0999Assigned COMMIO, LLC 939H TRENTON MI
2021-09-15 734-933-6XXX 6000–6999Assigned COMMIO, LLC 939H WYANDOTTE MI
2021-09-15 734-933-7XXX 7000–7999Assigned COMMIO, LLC 939H WYANDOTTE MI
2021-09-15 734-933-8XXX 8000–8999Assigned COMMIO, LLC 939H WYANDOTTE MI
2021-09-15 734-933-9XXX 9000–9999Assigned COMMIO, LLC 939H WYANDOTTE MI
2021-09-13 734-496-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-13 734-496-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-13 734-496-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2021-09-08 734-966-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G LOSTPNNSUL MI
2021-08-26 734-410-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2021-08-26 734-779-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J LIVONIA MI
2021-08-17 734-332-2XXX 2000–2999Assigned COMMIO, LLC 939H ANN ARBOR MI
2021-08-17 734-519-8XXX 8000–8999Assigned COMMIO, LLC 939H ANN ARBOR MI
2021-08-16 734-537-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C MAYBEE MI
2021-08-16 734-537-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MAYBEE MI
2021-08-03 734-496-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2021-08-03 734-496-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2021-08-03 734-496-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2021-07-22 734-290-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C DUNDEE MI
2021-07-22 734-290-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C DUNDEE MI
2021-07-14 734-406-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROMULUS MI
2021-07-02 734-409-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C NOSYLVANIA 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.