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 765
AT&T ENTERPRISES, LLC 59
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
2024-07-19 765-290-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ROSEDALE IN
2024-07-19 765-597-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C MARSHALL IN
2024-07-19 765-731-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ROCKVILLE IN
2024-07-19 765-758-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C BUCK CREEK IN
2024-05-06 765-872-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MELLOTT IN
2023-09-06 765-718-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MECHANSBG IN
2016-07-06 765-881-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C MUNCIE IN
2015-02-17 765-553-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C KOKOMO IN
2011-08-09 765-234-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C WAYNETOWN IN
2011-08-09 765-248-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MONTEZUMA IN
2011-08-09 765-249-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MICHIGANTN IN
2011-08-09 765-279-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C KIRKLIN IN
2011-08-09 765-294-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C VEEDERSBG IN
2011-08-09 765-303-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MONTPELIER IN
2011-08-09 765-314-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C BOSWELL IN
2011-08-09 765-329-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C HARTFORDCY IN
2011-08-09 765-351-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C GASTON IN
2011-08-09 765-385-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C OXFORD IN
2011-08-09 765-390-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C KINGMAN IN
2011-08-09 765-399-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C EATON IN
2011-08-09 765-435-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WAVELAND IN
2011-08-09 765-441-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C OTTERBEIN IN
2011-08-09 765-505-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CLINTON IN
2011-08-09 765-566-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C BURLINGTON IN
2011-08-09 765-665-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C DANA IN
2011-08-09 765-769-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C ATTICA IN
2011-08-09 765-885-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C FOWLER IN
2011-08-09 765-893-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C W LEBANON IN
2011-08-09 765-942-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C LADOGA IN
2011-08-09 765-986-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C STEWART IN
2010-10-07 765-460-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C PERU IN
2010-10-07 765-536-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C SUMMITVL IN
2010-10-07 765-537-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PARAGON IN
2010-10-07 765-627-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C GREENTOWN IN
2010-10-07 765-722-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C YORKTOWN IN
2010-10-07 765-753-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C RUSSIAVL IN
2010-10-07 765-794-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C DARLINGTON IN
2010-10-07 765-862-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NEW MARKET IN
2010-10-07 765-997-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C UPLAND IN
2010-10-06 765-391-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C AMBOY IN
2010-10-06 765-492-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C CAYUGA IN
2010-10-06 765-689-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C BUNKERHILL IN
2010-10-06 765-789-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C ALBANY IN
2010-10-06 765-814-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C COVINGTON IN
2009-12-09 765-684-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MIDDLETOWN IN
2009-10-20 765-365-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CRAWFODSVL IN
2009-10-20 765-378-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C CHESTERFLD IN
2009-10-20 765-544-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MANILLA IN
2009-10-20 765-551-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C ELWOOD IN
2009-10-20 765-573-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C MARION IN

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.