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 660
BANDWIDTH.COM CLEC, LLC - MO 77
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
2023-06-05 660-371-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CONCORDIA MO
2023-02-27 660-556-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E WARSAW MO
2023-02-09 660-556-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E WARSAW MO
2022-02-11 660-961-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E COAL MO
2021-09-13 660-961-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E COAL MO
2020-02-07 660-776-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LINCOLN MO
2020-02-07 660-974-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E COLE CAMP MO
2020-02-03 660-858-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E FLORENCE MO
2019-03-27 660-631-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MARSHALL MO
2017-07-17 660-570-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2016-06-16 660-717-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MARSHALL MO
2016-06-16 660-951-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2015-08-25 660-951-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2015-07-28 660-236-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MARSHALL MO
2015-05-26 660-324-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SLATER MO
2015-02-06 660-236-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MARSHALL MO
2014-12-24 660-951-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-12-22 660-460-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-12-22 660-460-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-12-22 660-530-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-12-09 660-324-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SLATER MO
2014-10-10 660-460-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-10-10 660-460-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-08-20 660-202-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MARSHALL MO
2014-08-06 660-460-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-08-06 660-460-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-01-23 660-324-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SLATER MO
2014-01-21 660-460-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-01-21 660-473-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2014-01-21 660-596-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2013-09-12 660-324-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SLATER MO
2013-03-27 660-473-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2013-03-27 660-596-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2012-03-20 660-324-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SLATER MO
2012-02-08 660-851-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2011-11-10 660-851-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2011-05-02 660-851-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2011-05-02 660-851-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2010-11-04 660-620-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2010-05-20 660-619-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SEDALIA MO
2009-01-13 660-219-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E HOUSTONIA MO
2009-01-13 660-250-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E NORBORNE MO
2009-01-13 660-273-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ARMSTRONG MO
2009-01-13 660-279-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E BLACKBURN MO
2009-01-13 660-283-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E BLAIRSTOWN MO
2009-01-13 660-298-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SYRACUSE MO
2009-01-13 660-398-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E HARDIN MO
2009-01-13 660-595-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MALTA BEND MO
2009-01-13 660-693-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MONTROSE MO
2009-01-13 660-955-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E DEEPWATER MO

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.