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.

Clarkrange, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
931-415 A NSVLTNMTYJZ  318J COMCAST IP PHONE, LLC 470      
931-415 1 NSVLTNMTYJZ  318J COMCAST IP PHONE, LLC 470      
931-863 A GNBOTNXADS1  0579 TWIN LAKES TEL. COOP. CORP. 470      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.