NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 810
BANDWIDTH.COM CLEC, LLC - MI 132
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2026-03-19 810-537-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SANDUSKY MI
2022-10-19 810-776-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2022-10-19 810-776-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2022-10-19 810-776-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2022-10-19 810-776-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2022-10-19 810-880-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2022-02-09 810-638-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NEWLOTHROP MI
2021-10-25 810-425-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PT SANILAC MI
2021-10-19 810-286-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NORTH BRCH MI
2021-10-18 810-256-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E METAMORA MI
2021-10-07 810-692-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BYRON MI
2020-11-19 810-243-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2020-11-19 810-243-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2020-11-19 810-243-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2020-11-19 810-243-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2020-11-19 810-243-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2020-11-12 810-215-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FENTON MI
2020-11-12 810-885-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FENTON MI
2020-10-05 810-295-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BRIGHTON MI
2020-10-05 810-295-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BRIGHTON MI
2020-08-10 810-428-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRANDBLANC MI
2020-08-05 810-243-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2020-07-28 810-886-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BROWN CITY MI
2020-01-28 810-510-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E COLUMBIAVL MI
2019-05-20 810-331-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ALMONT MI
2018-12-04 810-818-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MONTROSE MI
2018-09-28 810-255-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HADLEY MI
2018-08-14 810-202-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLUSHING MI
2018-06-28 810-310-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CAPAC MI
2018-05-09 810-258-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E RANKIN MI
2018-05-01 810-310-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CAPAC MI
2018-05-01 810-377-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LEXINGTON MI
2018-03-09 810-666-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2018-03-09 810-666-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2018-03-09 810-666-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2017-09-20 810-674-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E APPLEGATE MI
2017-05-04 810-379-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DAVISON MI
2016-08-11 810-498-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRANDBLANC MI
2016-07-27 810-510-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E COLUMBIAVL MI
2016-06-28 810-432-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PORT HURON MI
2016-06-23 810-215-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FENTON MI
2016-06-23 810-226-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DAVISON MI
2016-06-23 810-337-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FLINT MI
2016-06-23 810-356-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAPEER MI
2016-06-22 810-206-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BRIGHTON MI
2014-10-27 810-881-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PECK MI
2014-08-20 810-279-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HARTLAND MI
2014-08-20 810-510-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E COLUMBIAVL MI
2014-08-18 810-226-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DAVISON MI
2014-08-13 810-258-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E RANKIN 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.