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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Port Sydney, ON

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
249-572 A HNVION174MD  464D FIBERNETICS CORPORATION 888 805112    
705-385 A PTSYON38RS0  8051 BELL ONTARIO 888 805112    
705-405 A PTSYON380MD  2782 TELUS INTEGRATED COMMUNICATIONS 888 805112    

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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