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
712-585 A New Market IA SNTNIAXODS1  644      
712-586 A Bethesda IA SNTNIAXODS1  644      
712-785 A Nodaway IA NDWYIAXO1MD  644      
712-826 A Villisca IA VLSCIAXO1MD  644      
712-829 A Stanton IA SNTNIAXODS1  644      

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

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