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
2021-12-15 734-774-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E IDA MI
2021-12-14 734-785-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2021-12-14 734-785-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2021-12-14 734-933-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2021-12-02 734-966-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LOSTPNNSUL MI
2021-11-05 734-597-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MONROE MI
2021-11-02 734-236-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ROCKWOOD MI
2021-11-02 734-299-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CARLETON MI
2021-11-02 734-299-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CARLETON MI
2021-11-02 734-348-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H FLAT ROCK MI
2021-11-02 734-406-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ROMULUS MI
2021-11-02 734-406-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ROMULUS MI
2021-11-02 734-488-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CHELSEA MI
2021-11-02 734-488-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CHELSEA MI
2021-11-02 734-526-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MILAN MI
2021-11-02 734-563-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PINCKNEY MI
2021-11-02 734-563-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PINCKNEY MI
2021-11-02 734-607-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LAMBERTVL MI
2021-11-02 734-607-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H LAMBERTVL MI
2021-11-02 734-969-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ROCKWOOD MI
2021-10-28 734-290-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H DUNDEE MI
2021-10-28 734-290-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H DUNDEE MI
2021-10-28 734-537-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MAYBEE MI
2021-10-28 734-537-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H MAYBEE MI
2021-10-28 734-584-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H GREGORY MI
2021-10-28 734-584-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H GREGORY MI
2021-10-28 734-704-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MANCHESTER MI
2021-10-28 734-704-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MANCHESTER MI
2021-10-28 734-766-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ERIE MI
2021-10-28 734-766-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ERIE MI
2021-10-26 734-642-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H TRENTON MI
2021-10-26 734-642-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H TRENTON MI
2021-10-26 734-682-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MONROE MI
2021-10-26 734-682-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MONROE MI
2021-10-25 734-541-2XXX 2000–2999Assigned NUSO, LLC 478J NOSYLVANIA MI
2021-10-20 734-322-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C MONROE MI
2021-10-20 734-322-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C MONROE MI
2021-10-20 734-322-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C MONROE MI
2021-10-20 734-410-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C MONROE MI
2021-10-18 734-518-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LIVONIA MI
2021-10-18 734-518-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LIVONIA MI
2021-10-18 734-518-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H LIVONIA MI
2021-10-18 734-521-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H LIVONIA MI
2021-10-18 734-743-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H LIVONIA MI
2021-10-18 734-977-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C SALINE MI
2021-10-18 734-977-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C SALINE MI
2021-10-15 734-827-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-10-14 734-537-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MAYBEE MI
2021-10-12 734-704-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MANCHESTER MI
2021-10-05 734-290-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C DUNDEE 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.