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.


NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
701-633 A Buffalo ND BFLONDXADS6  636      
701-646 A Sanborn ND SNBRNDXARS6  636      
701-668 A Page ND PAGENDXARS6  636      
701-689 A Alice ND ALICNDXARS6  636      
701-733 A Dazey ND DAZYNDXARS7  636      
701-749 A Tower City ND TWCYNDXARS7  636      
701-769 A Hannaford ND HNFDNDXARS1  636      
701-924 A Nome ND NOMENDXARS1  636      
701-945 A Hope ND HOPENDXARS9  636      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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