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 260
LEVEL 3 COMMUNICATIONS, LLC - IN 104
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
2024-04-04 260-304-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LIGONIER IN
2023-12-05 260-328-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2023-01-19 260-298-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2022-10-05 260-321-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2022-08-29 260-400-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 POE HOAGLD IN
2020-07-28 260-204-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 GENEVA IN
2020-07-14 260-361-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CROMWELL IN
2020-06-25 260-503-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 COLUMBIACY IN
2018-12-31 260-200-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 HUNTINGTON IN
2018-12-11 260-212-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 COLUMBIACY IN
2017-09-12 260-234-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2017-06-20 260-234-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2017-04-12 260-888-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2016-07-06 260-999-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2015-06-17 260-240-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2015-04-23 260-240-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2014-09-29 260-222-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2014-06-05 260-587-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ASHLEY IN
2014-05-16 260-202-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 PORTLAND IN
2014-05-16 260-597-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 TOCSIN IN
2014-05-16 260-626-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 PLEASANTML IN
2014-05-15 260-997-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 BRYANT IN
2014-04-08 260-222-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2013-12-11 260-240-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2013-10-11 260-564-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ALBION IN
2013-07-24 260-225-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 WABASH IN
2013-07-05 260-271-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ARCOLA IN
2013-03-12 260-222-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2012-11-30 260-205-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2012-11-09 260-214-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LAGRANGE IN
2012-03-28 260-579-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2012-03-21 260-333-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 AUBURN IN
2012-01-18 260-918-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2011-12-14 260-624-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ANGOLA IN
2011-03-10 260-918-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2011-02-04 260-582-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 KENDALLVL IN
2010-11-03 260-918-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2010-06-22 260-301-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 DECATUR IN
2008-07-08 260-333-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 AUBURN IN
2008-04-08 260-901-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 NOMANCHETR IN
2008-04-08 260-901-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 NOMANCHETR IN
2006-12-14 260-344-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 BIPPUS IN
2006-08-16 260-440-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2006-08-16 260-440-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2006-08-16 260-440-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2006-08-16 260-440-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2006-04-07 260-748-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 NEW HAVEN IN
2006-03-28 260-494-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2005-08-22 260-232-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 WATERLOO IN
2005-08-22 260-366-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 HUNTINGTON IN

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.