NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 470
AT&T ENTERPRISES, LLC 53
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
2024-01-16 470-932-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C LUTHERSVL GA
2017-03-03 470-361-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2016-11-09 470-317-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2016-11-09 470-323-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C BUFORD GA
2016-11-09 470-488-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2016-11-09 470-488-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2016-07-27 470-778-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C FLOWEYBRCH GA
2016-07-26 470-321-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2016-07-26 470-321-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2016-07-26 470-321-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2016-07-08 470-302-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C CUMMING GA
2016-07-07 470-488-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2016-07-07 470-488-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2016-07-07 470-488-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2016-06-28 470-441-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C COVINGTON GA
2016-06-15 470-305-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA GA
2016-06-14 470-308-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NW GA
2016-05-23 470-294-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2016-05-11 470-317-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2016-03-25 470-294-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2016-03-25 470-589-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C BUFORD GA
2015-10-09 470-278-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2015-10-09 470-282-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2015-10-01 470-281-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CUMMING GA
2015-09-01 470-771-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C GRIFFIN GA
2015-07-31 470-875-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA GA
2015-06-01 470-729-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C CARROLLTON GA
2015-05-20 470-719-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2015-05-20 470-878-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2015-04-02 470-274-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CARTERSVL GA
2015-03-27 470-575-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA GA
2015-03-25 470-441-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C COVINGTON GA
2015-02-19 470-878-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA SO GA
2014-12-24 470-414-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C NEWNAN GA
2014-12-22 470-575-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA GA
2014-12-16 470-275-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2014-08-14 470-891-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA GA
2014-08-07 470-349-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2014-06-17 470-252-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C GAINESVL GA
2014-05-19 470-336-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2014-05-19 470-440-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA GA
2014-03-12 470-210-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2014-03-04 470-297-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C CUMMING GA
2013-12-19 470-326-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C BUFORD GA
2013-11-13 470-268-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2013-08-26 470-268-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2013-06-25 470-539-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2013-01-14 470-242-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2012-12-19 470-205-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C COVINGTON GA
2012-10-29 470-219-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATLANTA NE GA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.