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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Switch: CLGRAB421MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
587-309 A Crossfield AB 2933 BELL WEST, INC. - ON 888 808401    
587-367 A Carstairs AB 2933 BELL WEST, INC. - ON 888 808401    
587-368 A Langdon AB 2933 BELL WEST, INC. - ON 888 808401    
825-446 A Vulcan AB 2933 BELL WEST, INC. - ON 888 808401    

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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