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 812
AT&T ENTERPRISES, LLC 41
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2024-07-19 812-982-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TENNYSON IN
2017-08-04 812-625-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C ST PHILIP IN
2016-06-06 812-228-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C EVANSVILLE IN
2015-01-21 812-914-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C NEW ALBANY IN
2014-11-05 812-650-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C BLOOMINGTN IN
2013-10-28 812-324-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C BRUCEVILLE IN
2013-10-28 812-665-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C JASONVILLE IN
2013-01-23 812-642-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WASHINGTON IN
2012-11-06 812-629-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C NEWBURGH IN
2012-01-13 812-993-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CHANDLER IN
2011-09-21 812-302-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C FLAT ROCK IN
2011-09-21 812-579-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ELIZABTHTN IN
2011-09-21 812-648-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C DUGGER IN
2011-08-17 812-286-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C NEWWSHNGTN IN
2011-08-15 812-370-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ST JOSEPH IN
2011-08-09 812-270-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NEWHARMONY IN
2011-08-09 812-301-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C DALE IN
2011-08-09 812-359-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C SANDRIDGE IN
2011-08-09 812-362-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C CHRISNEY IN
2011-08-09 812-566-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TELL CITY IN
2011-08-09 812-660-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ROCKPORT IN
2011-08-09 812-868-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MCUTCHANVL IN
2011-05-25 812-512-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C LINTON IN
2011-05-25 812-643-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MT VERNON IN
2011-03-04 812-807-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C HELTONVL IN
2010-10-07 812-546-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C HOPE IN
2010-10-07 812-597-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C MORGANTOWN IN
2010-10-07 812-652-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SPENCER IN
2010-10-07 812-720-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C NASHVILLE IN
2010-09-21 812-646-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C BOONVILLE IN
2010-01-06 812-503-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CHARLESTN IN
2010-01-06 812-748-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SELLERSBG IN
2009-12-29 812-728-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C GALENA IN
2009-12-28 812-924-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C NEW ALBANY IN
2009-12-08 812-792-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C BLOOMFIELD IN
2009-10-19 812-703-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C EDINBURGH IN
2008-07-17 812-657-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C COLUMBUS IN
2006-06-08 812-369-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C BLOOMINGTN IN
2006-01-13 812-790-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C VINCENNES IN
2005-07-27 812-329-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C BEDFORD IN
2005-04-12 812-550-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C EVANSVILLE IN

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.