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 941
LEVEL 3 COMMUNICATIONS, LLC - FL 98
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
2023-12-20 941-352-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL
2023-10-27 941-324-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL
2022-12-12 941-466-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCAGRANDE FL
2022-12-09 941-588-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CAPE HAZE FL
2022-06-14 941-290-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL
2020-12-24 941-559-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PUNTAGORDA FL
2019-03-14 941-261-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 VENICE FL
2019-03-14 941-261-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 VENICE FL
2019-03-14 941-261-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 VENICE FL
2019-03-14 941-262-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2019-03-14 941-262-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2019-03-14 941-262-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2019-03-14 941-262-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2016-07-19 941-724-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2016-07-13 941-213-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL
2015-12-23 941-457-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PTCHARLOTT FL
2015-09-30 941-218-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 VENICE FL
2015-07-23 941-210-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2015-07-23 941-210-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2014-12-03 941-787-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PTCHARLOTT FL
2014-11-19 941-876-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 NORTH PORT FL
2014-11-05 941-203-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2014-11-05 941-203-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2014-09-25 941-203-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2014-09-25 941-787-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PTCHARLOTT FL
2014-06-26 941-757-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL
2014-03-26 941-893-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2014-03-06 941-702-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2013-07-10 941-256-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2013-01-03 941-621-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PUNTAGORDA FL
2012-10-24 941-256-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2012-10-16 941-757-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL
2012-08-21 941-787-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PTCHARLOTT FL
2011-12-01 941-803-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PALMETTO FL
2011-09-27 941-787-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PTCHARLOTT FL
2011-09-27 941-999-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ENGLEWOOD FL
2011-09-20 941-584-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 VENICE FL
2011-07-14 941-444-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2011-07-14 941-763-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PTCHARLOTT FL
2011-03-15 941-621-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PUNTAGORDA FL
2010-12-02 941-404-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2010-11-29 941-444-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2010-11-08 941-357-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL
2010-09-08 941-357-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL
2010-05-27 941-225-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2010-01-28 941-893-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2009-12-14 941-357-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL
2009-10-16 941-803-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PALMETTO FL
2009-08-18 941-225-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2009-07-29 941-462-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRADENTON FL

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.