NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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, last 30 days — NPA 947
BANDWIDTH.COM CLEC, LLC - MI 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
2026-09-10 947-281-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTHFIELD MI
2022-10-26 947-813-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NORTHVILLE MI
2022-10-25 947-733-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DRAYTON PL MI
2022-10-20 947-254-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2022-10-20 947-254-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2022-10-05 947-546-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WALLEDLAKE MI
2022-10-01 947-447-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-10-01 947-447-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-10-01 947-447-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-10-01 947-447-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-10-01 947-447-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-09-06 947-258-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CLARKSTON MI
2022-08-22 947-813-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NORTHVILLE MI
2022-08-22 947-813-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NORTHVILLE MI
2022-08-09 947-447-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-08-09 947-447-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2021-08-30 947-366-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2021-08-30 947-366-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2021-04-30 947-345-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E OXFORD MI
2021-04-29 947-345-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E OXFORD MI
2020-11-10 947-225-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2020-11-10 947-225-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2020-09-22 947-228-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2020-06-10 947-207-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTH LYON MI
2020-06-04 947-218-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TROY MI
2019-05-03 947-465-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E COMMERCE MI
2019-05-01 947-214-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WALLEDLAKE MI
2019-02-21 947-210-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2019-02-11 947-622-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2018-12-11 947-208-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E AUBURN HTS MI
2018-11-14 947-207-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTH LYON MI
2018-10-10 947-208-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E AUBURN HTS MI
2018-10-01 947-221-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DRAYTON PL MI
2018-09-25 947-207-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTH LYON MI
2018-09-20 947-886-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2018-08-06 947-886-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2018-08-06 947-886-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2018-08-06 947-886-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2018-06-08 947-252-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E AUBURN HTS MI
2018-04-03 947-252-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E AUBURN HTS MI
2016-07-25 947-333-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2016-06-23 947-222-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DRAYTON PL MI
2016-06-23 947-888-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CLARKSTON MI
2016-04-11 947-777-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MILFDWH LK MI
2016-02-26 947-282-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTHFIELD 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.