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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Embro, ON

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
226-575 A WDSTON45CMD  004G QUADRO COMMUNICATIONS CO-OPERATIVE INC. - ON 888 805135    
519-475 A EMBRON05RS0  8051 BELL ONTARIO 888 805135    
548-441 A WDSTON110MD  464D FIBERNETICS CORPORATION 888 805135    

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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