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: 865 [Rate centres in NPA 865] [Dial plan for NPA 865]

NXX: 515

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
865-515 A Oak Ridge TN   114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 474   2026-09-14   
865-515 0 Oak Ridge TN   845C INTRADO COMMUNICATIONS, LLC 474   2026-09-15   
865-515 6 Oak Ridge TN   114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 474   2026-09-14   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.