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 203
CABLEVISION LIGHTPATH, INC. - CT 64
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
2014-06-27 203-290-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 BRIDGEPORT CT
2013-11-22 203-998-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2013-11-19 203-900-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2012-10-05 203-703-0XXX 0000–0999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2012-08-03 203-724-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2012-08-03 203-724-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2012-08-03 203-817-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2012-03-28 203-489-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2011-09-21 203-658-2XXX 2000–2999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2011-09-21 203-989-1XXX 1000–1999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2011-05-25 203-810-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 NORWALK CT
2011-04-27 203-349-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 WESTPORT CT
2011-04-05 203-970-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 NORWALK CT
2010-07-14 203-693-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 MILFORD CT
2009-07-23 203-595-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2009-05-06 203-548-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-0XXX 0000–0999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-1XXX 1000–1999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-2XXX 2000–2999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-09-15 203-960-9XXX 9000–9999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2008-06-05 203-769-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2008-04-17 203-541-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2007-10-25 203-422-1XXX 1000–1999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2007-08-03 203-423-1XXX 1000–1999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 WILTON CT
2007-06-18 203-883-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2007-03-07 203-983-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2007-02-12 203-817-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2007-02-09 203-340-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2006-12-21 203-742-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2006-01-23 203-340-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2005-08-29 203-302-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2005-04-06 203-340-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2004-11-08 203-542-2XXX 2000–2999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2004-06-30 203-810-1XXX 1000–1999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 NORWALK CT
2004-06-30 203-810-2XXX 2000–2999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 NORWALK CT
2004-06-30 203-810-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 NORWALK CT
2003-08-20 203-340-9XXX 9000–9999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 GREENWICH CT
2003-07-21 203-548-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2003-07-21 203-548-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2003-05-02 203-529-2XXX 2000–2999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 WILTON CT
2003-04-30 203-548-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2003-04-04 203-548-2XXX 2000–2999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2003-04-04 203-548-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2003-04-02 203-276-2XXX 2000–2999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT

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.