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
256-379 A New Market AL NWMRALXADS0  477      
256-420 A Ardmore (Madison) AL ARMRALXADS0  470      
256-423 A Ardmore (Limestone) AL ARMRALXADS0  470      
256-732 A Elkmont AL ELMTALXADS0  477      
931-427 A Ardmore TN ARMRALXADS0  470      
931-565 A Minor Hill TN MNHLTNXARS5  470      
931-732 A McBurg TN MCBGTNXARS5  470      

Last updated: Sat, 27 Jul 2019 10:59:49 UTC

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