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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Tsiigehtchic, NT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
867-490 A THTCNT010MD  6574 BELL CELLULAR, INC. 888 809205    
867-953 A THTCNT01RS0  8092 NORTHWESTEL 888 809205 2024-01-03   

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

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