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
2022-03-10 734-653-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J MILAN MI
2022-03-08 734-874-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J ERIE MI
2022-03-07 734-280-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WYANDOTTE MI
2022-03-04 734-328-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J BELLEVILLE MI
2022-03-04 734-537-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J MAYBEE MI
2022-03-04 734-932-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J DEXTER MI
2022-02-24 734-736-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J WAYNE MI
2022-02-24 734-832-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J WILLIS MI
2022-02-01 734-294-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BELLEVILLE MI
2022-02-01 734-933-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WYANDOTTE MI
2022-01-28 734-768-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2022-01-28 734-768-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2022-01-28 734-768-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2022-01-28 734-768-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2022-01-28 734-768-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2022-01-25 734-329-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WAYNE MI
2022-01-25 734-329-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WAYNE MI
2022-01-25 734-437-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LIVONIA MI
2022-01-25 734-632-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LIVONIA MI
2022-01-25 734-977-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SALINE MI
2022-01-14 734-937-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J WHITMORELK MI
2022-01-14 734-967-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J CARLETON MI
2022-01-11 734-206-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J TEMPERANCE MI
2022-01-10 734-643-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J WYANDOTTE MI
2022-01-10 734-683-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J GREGORY MI
2022-01-10 734-684-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J IDA MI
2022-01-06 734-563-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J PINCKNEY MI
2022-01-04 734-602-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J YPSILANTI MI
2021-12-30 734-437-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LIVONIA MI
2021-12-30 734-488-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHELSEA MI
2021-12-30 734-521-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LIVONIA MI
2021-12-30 734-550-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WHITMORELK MI
2021-12-28 734-768-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-12-28 734-768-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-12-28 734-768-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-12-28 734-768-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-12-22 734-238-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2021-12-22 734-254-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PLYMOUTH MI
2021-12-22 734-737-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H PLYMOUTH MI
2021-12-22 734-768-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J ANN ARBOR MI
2021-12-22 734-862-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H PLYMOUTH MI
2021-12-22 734-877-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2021-12-22 734-877-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2021-12-22 734-877-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2021-12-22 734-877-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2021-12-22 734-991-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WYANDOTTE MI
2021-12-20 734-337-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H YPSILANTI MI
2021-12-20 734-877-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WAYNE MI
2021-12-20 734-877-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H WAYNE MI
2021-12-20 734-877-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WAYNE 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.