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 828
AT&T ENTERPRISES, LLC 33
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
2024-08-14 828-603-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C LIBERTY-CH NC
2024-08-14 828-822-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WATERVILLE NC
2016-08-22 828-974-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ARDEN NC
2016-06-15 828-435-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C HENDERSNVL NC
2014-08-04 828-232-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ASHEVILLE NC
2014-08-04 828-513-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C HENDERSNVL NC
2011-10-11 828-592-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SPRUCEPINE NC
2011-06-13 828-581-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C SWANNANOA NC
2011-05-18 828-623-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C CAROLEEN NC
2011-05-10 828-548-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CLAREMONT NC
2011-05-10 828-589-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ELLENBORO NC
2011-05-10 828-742-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NEWLAND NC
2011-02-23 828-436-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C LAKE LURE NC
2010-02-02 828-705-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MAIDEN NC
2009-12-23 828-372-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C BLOWING RK NC
2009-11-30 828-542-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MAGGIE VLY NC
2009-10-19 828-471-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TAYLORSVL NC
2009-10-01 828-229-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C FORESTCITY NC
2009-10-01 828-395-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C RUTHEFRDTN NC
2009-09-29 828-595-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C HENDERSNVL NC
2009-07-29 828-386-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C BOONE NC
2009-07-29 828-469-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C NEWTON NC
2009-07-29 828-544-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MORGANTON NC
2009-07-29 828-572-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C LENOIR NC
2009-07-22 828-419-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C BLACK MT NC
2009-07-22 828-476-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WAYNESVL NC
2009-07-22 828-492-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C CANTON NC
2009-07-22 828-515-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C LEICESTER NC
2009-07-22 828-565-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C CLYDE NC
2009-01-23 828-338-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C FAIRVIEW NC
2009-01-23 828-418-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C ENKACANDLR NC
2009-01-23 828-483-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C ARDEN NC
2009-01-12 828-424-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ASHEVILLE NC

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.