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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Howick, QC

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
450-237 A TRSSPQ011MD  8306 VIDEOTRON LTD. 888 805010    
450-353 A CTGYPQ133MD  160G COMWAVE NETWORKS INC. - ON 888 805010    
450-603 A TRSSPQ011MD  8306 VIDEOTRON LTD. 888 805010    
450-825 A HWCKPQ42RS1  8050 BELL QUEBEC 888 805010    
579-332 A CTGYPQ131MD  4727 ISP TELECOM, INC. 888 805010    
579-519 A CTGYPQ139MD  464D FIBERNETICS CORPORATION 888 805010    

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

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