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
931-556 A Five Points TN FVPLTNXARS5  470      
931-829 A Ethridge TN ETRGTNXARS0  470      
931-845 A St Joseph TN STJSTNXARS5  470      
931-852 A Leoma TN LEOMTNXARS5  470      
931-853 A Loretto TN LRTTTNXADS0  470      

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

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