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 617
PAETEC ITEL, LLC 167
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
2017-07-21 617-405-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J QUINCY MA
2017-07-05 617-691-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J QUINCY MA
2017-06-15 617-663-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J NEWTON MA
2015-12-28 617-321-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J WATERTOWN MA
2015-09-08 617-454-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NEWTON MA
2014-06-24 617-217-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2013-11-22 617-762-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J NEWTON MA
2013-09-06 617-481-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J QUINCY MA
2013-08-14 617-766-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J SO BOSTON MA
2013-07-03 617-982-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2013-01-15 617-831-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J NEWTON MA
2013-01-08 617-936-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2013-01-08 617-936-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2012-11-20 617-837-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J QUINCY MA
2012-11-20 617-837-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J QUINCY MA
2012-11-19 617-637-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J JAMAICA PL MA
2012-05-17 617-322-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J MILTON MA
2012-04-25 617-952-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J CHARLESTN MA
2012-04-25 617-952-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CHARLESTN MA
2012-04-25 617-952-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J CHARLESTN MA
2012-03-20 617-936-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2011-11-18 617-615-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J MILTON MA
2011-11-08 617-704-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J DORCHESTER MA
2011-10-03 617-766-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J SO BOSTON MA
2011-05-20 617-318-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ROXBURY MA
2010-11-19 617-231-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J WATERTOWN MA
2010-11-15 617-702-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SOMERVILLE MA
2010-10-20 617-751-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BROOKLINE MA
2010-10-05 617-419-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-419-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-419-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-419-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-807-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-807-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-807-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-807-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-807-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-807-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-807-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-12 617-807-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-07-01 617-714-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CAMBRIDGE MA
2010-05-19 617-807-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2010-04-08 617-858-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROXBURY MA
2010-04-07 617-925-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BRIGHTON MA
2010-03-19 617-701-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J SO BOSTON MA
2009-12-17 617-971-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J JAMAICA PL MA
2009-11-23 617-804-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J QUINCY MA
2009-09-28 617-751-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J BROOKLINE MA
2009-09-11 617-663-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J NEWTON MA
2009-06-08 617-717-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J BOSTON MA

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.