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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 329 [Rate centres in NPA 329] [Dial plan for NPA 329]

NXX: 500

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
329-500 A Poughkeepsie NY   977K YORKSTREAM COMMUNICATIONS LLC 133   2025-05-23   
329-500 0 Poughkeepsie NY   977K YORKSTREAM COMMUNICATIONS LLC 133   2025-05-23   
329-500 5 Poughkeepsie NY   977K YORKSTREAM COMMUNICATIONS LLC 133   2025-05-23   
329-500 9 Poughkeepsie NY   977K YORKSTREAM COMMUNICATIONS LLC 133   2025-05-23   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.