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 316
LEVEL 3 COMMUNICATIONS, LLC - KS 61
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
2017-03-29 316-616-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2014-06-12 316-779-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2014-04-02 316-413-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 GODDARD KS
2014-04-02 316-540-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 CHENEY KS
2014-04-02 316-742-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 LEON KS
2014-04-02 316-778-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 BENTON KS
2014-04-02 316-830-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 HALSTEAD KS
2014-04-01 316-444-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 ANDALE KS
2014-01-29 316-854-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2014-01-23 316-453-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 MOUNT HOPE KS
2013-12-27 316-854-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2013-06-04 316-749-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2013-04-30 316-282-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 NEWTON KS
2013-04-10 316-768-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2012-12-20 316-251-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 EL DORADO KS
2012-11-09 316-416-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WHITEWATER KS
2011-12-16 316-746-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 DOUGLASS KS
2011-10-05 316-536-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 TOWANDA KS
2011-09-09 316-251-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 EL DORADO KS
2011-04-04 316-351-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2011-03-10 316-444-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 ANDALE KS
2010-12-28 316-869-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2010-11-16 316-448-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2010-11-16 316-448-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2010-11-16 316-633-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2010-11-16 316-712-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2010-11-16 316-712-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2010-11-16 316-712-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2007-08-31 316-201-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2007-02-07 316-350-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2007-02-07 316-613-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2006-11-27 316-281-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 NEWTON KS
2006-11-09 316-215-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WHITEWATER KS
2006-09-08 316-239-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2006-09-08 316-239-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2006-05-02 316-462-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2006-02-22 316-613-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2006-02-22 316-613-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2005-12-28 316-771-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2005-12-28 316-771-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2005-12-28 316-771-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2005-10-27 316-771-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2005-10-11 316-771-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2005-09-22 316-771-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2005-08-26 316-665-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2005-08-26 316-665-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2005-08-23 316-281-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 NEWTON KS
2004-12-16 316-313-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 EL DORADO KS
2004-12-16 316-444-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 ANDALE KS
2004-12-16 316-531-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 GARDEN PL KS

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.