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: 503

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
865-503 A West Sweetwater TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2024-01-15   
865-503 0 West Sweetwater TN   525E ONVOY, LLC - TN 474   2016-05-12   
865-503 1 West Sweetwater TN   525E ONVOY, LLC - TN 474   2016-05-12   
865-503 2 West Sweetwater TN   525E ONVOY, LLC - TN 474   2019-03-28   
865-503 3 West Sweetwater TN   525E ONVOY, LLC - TN 474   2016-06-09   
865-503 4 West Sweetwater TN   525E ONVOY, LLC - TN 474   2021-03-19   
865-503 5 West Sweetwater TN   525E ONVOY, LLC - TN 474   2021-05-22   
865-503 6 West Sweetwater TN   525E ONVOY, LLC - TN 474   2021-05-22   
865-503 8 West Sweetwater TN   073H TELNYX LLC 474   2019-06-02   
865-503 9 West Sweetwater TN   525E ONVOY, LLC - TN 474   2019-06-23   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.