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 Hope, ON

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
289-436 A CBRGONBJ0MD  4727 ISP TELECOM, INC. 888 805134    
289-519 A PTHPONEJ0MD  383F FREEDOM MOBILE INC. 888 805134    
905-800 A PTHPON61AMD  2782 TELUS INTEGRATED COMMUNICATIONS 888 805134    
905-885 A PTHPON61RSA  8051 BELL ONTARIO 888 805134    

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

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