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 OCN LATA LIR Eff date Disc date
731-238 A Milan TN 335G SI WIRELESS, LLC 468   2011-10-07   
731-300 A Jackson TN 150G JACKSON ENERGY AUTHORITY - TN 468   2011-02-02   
731-400 A Savannah TN 335G SI WIRELESS, LLC 468   2011-02-10   

Last updated: Sun, 31 May 2020 11:59:01 UTC

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