NumberResearch Membership · Data 09/25/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/25/2026

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 717
WINDSTREAM D & E SYSTEMS, INC. - PA 49
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
2016-10-12 717-874-6XXX 6000–6999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2016-02-04 717-857-0XXX 0000–0999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 HARISBGZN1 PA
2015-05-20 717-947-6XXX 6000–6999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2012-02-28 717-620-6XXX 6000–6999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 MECHANCSBG PA
2012-02-06 717-675-1XXX 1000–1999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LEBANON PA
2011-09-27 717-736-4XXX 4000–4999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 HARISBGZN1 PA
2011-06-17 717-287-2XXX 2000–2999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 ELIZABTHTN PA
2010-03-29 717-205-0XXX 0000–0999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2010-03-26 717-327-2XXX 2000–2999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2009-11-27 717-635-6XXX 6000–6999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 HARISBGZN1 PA
2009-05-04 717-945-1XXX 1000–1999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2009-02-23 717-723-4XXX 4000–4999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2008-04-14 717-559-9XXX 9000–9999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 DAUPHIN PA
2007-09-14 717-517-5XXX 5000–5999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2007-09-14 717-525-6XXX 6000–6999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 HARISBGZN1 PA
2007-06-04 717-517-3XXX 3000–3999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2006-11-22 717-824-8XXX 8000–8999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2006-10-10 717-910-7XXX 7000–7999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 HARISBGZN2 PA
2006-02-08 717-490-8XXX 8000–8999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2005-11-29 717-735-9XXX 9000–9999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2005-03-10 717-252-7XXX 7000–7999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 WRIGHTSVL PA
2005-03-10 717-268-3XXX 3000–3999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 MANCHESTER PA
2005-03-10 717-300-2XXX 2000–2999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 SHIPPENSBG PA
2005-03-10 717-308-3XXX 3000–3999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 DOVER PA
2005-03-10 717-342-0XXX 0000–0999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 COLUMBIA PA
2005-03-10 717-417-7XXX 7000–7999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 RED LION PA
2005-03-10 717-426-8XXX 8000–8999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 MARIETTA PA
2005-03-10 717-455-5XXX 5000–5999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 STRASBURG PA
2005-03-10 717-861-0XXX 0000–0999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 JONESTOWN PA
2005-03-10 717-967-6XXX 6000–6999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 MT GRETNA PA
2005-01-28 717-871-7XXX 7000–7999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 MILLERSVL PA
2004-11-30 717-833-5XXX 5000–5999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 PALMYRA PA
2004-07-30 717-689-1XXX 1000–1999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 ELIZABTHTN PA
2004-01-30 717-635-7XXX 7000–7999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 HARISBGZN1 PA
2004-01-21 717-502-5XXX 5000–5999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 DILLSBURG PA
2003-05-02 717-949-5XXX 5000–5999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 SCHAEFESTN PA
2003-04-19 717-868-4XXX 4000–4999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 ANNVILLE PA
2003-01-29 717-544-0XXX 0000–0999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2003-01-29 717-544-1XXX 1000–1999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2003-01-29 717-544-2XXX 2000–2999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2003-01-29 717-544-3XXX 3000–3999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2003-01-29 717-544-4XXX 4000–4999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2003-01-29 717-544-5XXX 5000–5999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2003-01-29 717-544-6XXX 6000–6999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2003-01-29 717-544-7XXX 7000–7999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2003-01-29 717-544-8XXX 8000–8999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2003-01-29 717-544-9XXX 9000–9999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LANCASTER PA
2002-08-13 717-546-5XXX 5000–5999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 MIDDLETOWN PA
2002-06-11 717-868-5XXX 5000–5999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 ANNVILLE PA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.