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 754
LEVEL 3 COMMUNICATIONS, LLC - FL 57
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
2022-07-12 754-289-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DEERFLDBCH FL
2019-05-31 754-241-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CORAL SPG FL
2019-03-26 754-812-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CORAL SPG FL
2016-05-25 754-707-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2015-07-17 754-240-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CORAL SPG FL
2015-07-10 754-301-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2015-07-10 754-301-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2015-04-22 754-208-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2015-04-22 754-209-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2015-04-22 754-301-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2015-04-22 754-301-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2015-04-22 754-301-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2014-11-25 754-701-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2014-11-25 754-701-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2014-11-05 754-702-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CORAL SPG FL
2014-09-25 754-208-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2014-09-11 754-208-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2014-09-11 754-802-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2014-04-30 754-802-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2014-04-09 754-701-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2014-04-09 754-701-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2013-10-03 754-210-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2013-06-12 754-210-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2012-11-15 754-600-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DEERFLDBCH FL
2012-10-22 754-217-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2012-08-07 754-220-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 POMPANOBCH FL
2012-02-29 754-227-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DEERFLDBCH FL
2012-02-23 754-222-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 POMPANOBCH FL
2012-02-23 754-400-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2012-01-27 754-227-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DEERFLDBCH FL
2011-12-08 754-222-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 POMPANOBCH FL
2011-11-23 754-227-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DEERFLDBCH FL
2011-09-15 754-227-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DEERFLDBCH FL
2011-08-03 754-229-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CORAL SPG FL
2011-05-20 754-400-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2011-05-06 754-333-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DEERFLDBCH FL
2011-05-06 754-333-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DEERFLDBCH FL
2011-02-25 754-444-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 POMPANOBCH FL
2011-02-11 754-300-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2011-02-11 754-300-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2010-12-13 754-229-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CORAL SPG FL
2010-11-29 754-222-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 POMPANOBCH FL
2010-11-29 754-222-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 POMPANOBCH FL
2010-11-29 754-300-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2010-11-29 754-300-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2010-11-29 754-300-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTLAUDERDL FL
2010-11-23 754-201-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2010-11-23 754-201-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2010-11-23 754-201-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOLLYWOOD FL
2010-10-25 754-229-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CORAL SPG 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.