NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 734
BANDWIDTH.COM CLEC, LLC - MI 187
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
2026-07-17 734-302-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2022-06-15 734-719-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CHELSEA 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
2021-12-02 734-966-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LOSTPNNSUL 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
2020-07-14 734-715-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAMBERTVL MI
2020-06-15 734-526-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MILAN MI
2020-06-04 734-519-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2020-06-04 734-519-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2020-05-28 734-412-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2020-04-23 734-371-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DUNDEE MI
2019-12-11 734-492-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2019-05-24 734-492-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2019-05-20 734-489-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2019-04-25 734-807-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TEMPERANCE MI
2019-04-09 734-412-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2019-04-09 734-412-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2019-02-28 734-412-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2018-12-04 734-600-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NEWPORT MI
2018-09-06 734-826-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E IDA MI
2018-05-01 734-550-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WHITMORELK MI
2018-03-06 734-210-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2018-03-06 734-210-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2018-02-28 734-489-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2018-02-28 734-489-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2018-02-28 734-623-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2017-07-18 734-234-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TEMPERANCE MI
2017-02-22 734-234-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TEMPERANCE MI
2016-06-22 734-544-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E YPSILANTI MI
2016-06-21 734-228-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PLYMOUTH MI
2016-06-21 734-366-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WAYNE MI
2016-06-20 734-263-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2016-06-20 734-304-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TRENTON MI
2016-04-14 734-415-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NEW BOSTON MI
2016-04-11 734-234-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TEMPERANCE MI
2016-04-11 734-441-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCKWOOD MI
2016-04-11 734-666-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LIVONIA MI
2016-04-11 734-743-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LIVONIA MI
2016-04-11 734-767-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WYANDOTTE MI
2016-04-11 734-772-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LIVONIA MI
2016-04-11 734-772-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LIVONIA MI
2016-04-11 734-793-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LIVONIA MI
2016-04-11 734-984-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLAT ROCK MI
2014-08-25 734-256-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WILLIS MI
2014-08-20 734-275-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PINCKNEY 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.