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 214
LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 48
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
2012-12-19 214-494-7XXX 7000–7999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 FRISCO TX
2010-05-07 214-494-3XXX 3000–3999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 FRISCO TX
2010-04-14 214-919-6XXX 6000–6999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 PLANO TX
2009-10-01 214-716-1XXX 1000–1999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DALLAS TX
2009-09-17 214-716-3XXX 3000–3999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DALLAS TX
2009-09-17 214-716-4XXX 4000–4999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DALLAS TX
2009-05-21 214-462-9XXX 9000–9999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DALLAS TX
2009-03-11 214-620-2XXX 2000–2999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 MCKINNEY TX
2009-01-19 214-436-8XXX 8000–8999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 FRISCO TX
2008-02-07 214-272-4XXX 4000–4999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DALLAS TX
2008-02-07 214-272-5XXX 5000–5999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DALLAS TX
2008-02-07 214-272-6XXX 6000–6999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DALLAS TX
2007-09-28 214-666-7XXX 7000–7999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DALLAS TX
2006-10-19 214-580-4XXX 4000–4999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DALLAS TX
2006-03-10 214-233-2XXX 2000–2999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 DLFTWTARPT TX
2005-10-26 214-247-4XXX 4000–4999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 CEDAR HILL TX
2004-12-15 214-996-0XXX 0000–0999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-12-15 214-996-1XXX 1000–1999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-12-15 214-996-2XXX 2000–2999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-12-15 214-996-3XXX 3000–3999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-12-15 214-996-4XXX 4000–4999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-12-15 214-996-5XXX 5000–5999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-12-15 214-996-6XXX 6000–6999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-12-15 214-996-7XXX 7000–7999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-12-15 214-996-8XXX 8000–8999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-12-15 214-996-9XXX 9000–9999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 DALLAS TX
2004-10-27 214-602-0XXX 0000–0999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-27 214-602-1XXX 1000–1999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-27 214-602-2XXX 2000–2999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-27 214-602-3XXX 3000–3999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-27 214-602-4XXX 4000–4999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-27 214-602-5XXX 5000–5999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-27 214-602-6XXX 6000–6999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-27 214-602-7XXX 7000–7999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-27 214-602-8XXX 8000–8999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-27 214-602-9XXX 9000–9999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CEDAR HILL TX
2004-10-26 214-594-0XXX 0000–0999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-26 214-594-1XXX 1000–1999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-26 214-594-2XXX 2000–2999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-26 214-594-3XXX 3000–3999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-26 214-594-4XXX 4000–4999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-26 214-594-5XXX 5000–5999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-26 214-594-6XXX 6000–6999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-26 214-594-7XXX 7000–7999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-26 214-594-8XXX 8000–8999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-26 214-594-9XXX 9000–9999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 IRVING TX
2004-10-08 214-247-2XXX 2000–2999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 CEDAR HILL TX
2004-10-08 214-247-3XXX 3000–3999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 CEDAR HILL TX

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.