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 814
ARMSTRONG TELECOMMUNICATIONS, INC. - PA 30
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
2022-11-23 814-219-3XXX 3000–3999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C MEADVILLE PA
2021-02-11 814-513-2XXX 2000–2999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C VENUS PA
2016-09-21 814-522-2XXX 2000–2999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C LINCOLNVL PA
2016-07-19 814-402-5XXX 5000–5999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C GIRARD PA
2016-07-19 814-760-2XXX 2000–2999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C MCKEAN PA
2016-07-19 814-840-2XXX 2000–2999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C FAIRVIEW PA
2016-07-13 814-347-4XXX 4000–4999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C NORTH EAST PA
2016-07-13 814-529-4XXX 4000–4999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C UNION CITY PA
2016-07-08 814-250-2XXX 2000–2999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C EDINBORO PA
2015-08-07 814-813-5XXX 5000–5999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C CAMBDG SPG PA
2014-08-25 814-315-5XXX 5000–5999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C ERIE PA
2010-07-09 814-576-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C CONNEAUTVL PA
2009-07-21 814-484-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C TIDIOUTE PA
2009-07-21 814-560-3XXX 3000–3999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C TIONESTA PA
2009-07-21 814-621-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C MARIENVL PA
2008-09-18 814-807-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C MEADVILLE PA
2007-10-05 814-319-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C CLARION PA
2007-10-05 814-744-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C LEEPER PA
2007-10-04 814-786-3XXX 3000–3999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C WESLEY PA
2007-09-28 814-208-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C OIL CITY PA
2007-09-28 814-209-2XXX 2000–2999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C FRANKLIN PA
2007-09-28 814-352-3XXX 3000–3999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C ROCKWOOD PA
2007-09-28 814-374-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C COOPERSTN PA
2007-09-28 814-581-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C SPARTANSBG PA
2007-09-28 814-589-0XXX 0000–0999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C PLEASANTVL PA
2007-09-28 814-679-0XXX 0000–0999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C WATERFORD PA
2007-09-28 814-739-3XXX 3000–3999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C WATTSBURG PA
2007-04-25 814-908-0XXX 0000–0999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C CLINTONVL PA
2007-03-30 814-638-0XXX 0000–0999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C COCHRANTON PA
2007-02-22 814-807-0XXX 0000–0999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C MEADVILLE PA

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.