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: 615 [Rate centres in NPA 615] [Dial plan for NPA 615]

NXX: 358

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
615-358 A Greenbrier TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 470      
615-358 0 Greenbrier TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 470   2005-09-10   
615-358 1 Greenbrier TN   829J PAETEC ITEL, LLC 470   2005-06-05   
615-358 3 Greenbrier TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 470      
615-358 4 Greenbrier TN   624H ONVOY SPECTRUM, LLC 470   2021-12-12   
615-358 5 Greenbrier TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 470   2004-11-15   
615-358 7 Greenbrier TN   525E ONVOY, LLC - TN 470   2019-01-11   
615-358 8 Greenbrier TN   124F BANDWIDTH.COM CLEC, LLC - TN 470   2008-11-28   
615-358 9 Greenbrier TN   124F BANDWIDTH.COM CLEC, LLC - TN 470   2021-12-10   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.