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.

Switch: KNVNTNEC8MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
423-601 1 Bulls Gap TN 490J DISH WIRELESS, LLC 474   2022-10-15   
865-427 A Knoxville TN 490J DISH WIRELESS, LLC 474      
865-427 9 Knoxville TN 490J DISH WIRELESS, LLC 474   2022-02-27   
865-431 A Solway TN 490J DISH WIRELESS, LLC 474      
865-431 9 Solway TN 490J DISH WIRELESS, LLC 474   2022-03-07   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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