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
423-447 A Pikeville TN PKVLTNXADS1  472      
423-533 A Nine Mile TN PKVLTNXADS1  472      
423-554 A College Station TN PKVLTNXADS1  472      
423-881 A Fall Creek Falls TN PKVLTNXADS1  472      
423-949 A Dunlap TN PKVLTNXADS1  472      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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