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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Tulita, NT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
867-374 A TLTANT010MD  6574 BELL CELLULAR, INC. 888 809212    
867-588 A WHTHYTXBDS0  8092 NORTHWESTEL 888 809212    

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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