Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 329 [Rate centres in NPA 329] [Dial plan for NPA 329]

NXX: 800

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
329-800 A Spring Valley NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2025-05-23   
329-800 0 Spring Valley NY   977K YORKSTREAM COMMUNICATIONS LLC 132   2025-05-23   
329-800 6 Spring Valley NY   7140 TC SYSTEMS, INC. - NY 132   2026-05-08   
329-800 8 Spring Valley NY   145J TERRA NOVA TELECOM INC. 132   2025-07-07   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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