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: KNVLTNMAYKX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
423-466 1 Athens TN 515J IP HORIZON LLC 474   2020-11-01   
423-973 0 Sneedville TN 515J IP HORIZON LLC 474   2016-03-25   
865-378 A Knoxville TN 515J IP HORIZON LLC 474      
865-568 9 Bent Creek TN 515J IP HORIZON LLC 474   2021-03-04   
865-830 9 Solway TN 515J IP HORIZON LLC 474   2016-05-06   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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