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 248
BANDWIDTH.COM CLEC, LLC - MI 216
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
2022-08-31 248-479-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2021-03-03 248-846-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2021-03-03 248-846-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2020-06-10 248-446-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTH LYON MI
2019-07-08 248-985-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E W BLOOMFLD MI
2019-05-06 248-861-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CLARKSTON MI
2019-05-06 248-955-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROYAL OAK MI
2019-05-03 248-940-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BIRMINGHAM MI
2019-05-01 248-970-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E W BLOOMFLD MI
2019-02-21 248-897-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2019-02-21 248-920-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2019-02-06 248-780-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2019-02-06 248-983-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2019-02-06 248-983-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2019-02-06 248-983-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2019-02-06 248-983-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2017-05-01 248-896-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WALLEDLAKE MI
2016-08-22 248-617-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTH LYON MI
2016-08-10 248-621-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTHFIELD MI
2016-08-10 248-621-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTHFIELD MI
2016-08-10 248-621-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTHFIELD MI
2016-08-10 248-781-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TROY MI
2016-08-10 248-934-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2016-08-10 248-934-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2016-07-26 248-963-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2016-07-25 248-564-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E AUBURN HTS MI
2016-07-25 248-564-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E AUBURN HTS MI
2016-07-25 248-983-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2016-07-20 248-301-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E COMMERCE MI
2016-07-20 248-301-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E COMMERCE MI
2016-07-20 248-800-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E OXFORD MI
2016-07-20 248-916-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NORTHVILLE MI
2016-07-19 248-532-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ORTONVILLE MI
2016-07-19 248-965-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROYAL OAK MI
2016-06-30 248-907-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2016-06-23 248-313-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WALLEDLAKE MI
2016-06-22 248-938-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NORTHVILLE MI
2016-06-20 248-710-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2016-06-20 248-847-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E W BLOOMFLD MI
2015-12-08 248-590-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BIRMINGHAM MI
2015-12-03 248-781-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TROY MI
2015-11-12 248-717-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MILFDWH LK MI
2015-07-22 248-897-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2015-01-20 248-533-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NORTHVILLE MI
2015-01-20 248-607-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROYAL OAK MI
2015-01-20 248-791-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2015-01-20 248-864-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTHFIELD MI
2014-10-31 248-657-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CLARKSTON MI
2014-08-07 248-788-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E W BLOOMFLD MI
2014-08-05 248-206-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROYAL OAK 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.