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: WLCXAZACDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
520-402 8 Benson AZ 183D VALLEY CONNECTIONS, L.L.C. - AZ 668   2017-02-27   
520-681 6 Nogales AZ 183D VALLEY CONNECTIONS, L.L.C. - AZ 668   2024-11-19   
520-766 A Willcox AZ 183D VALLEY CONNECTIONS, L.L.C. - AZ 668      
520-812 8 Tucson AZ 183D VALLEY CONNECTIONS, L.L.C. - AZ 668   2011-10-12   
928-424 A Safford AZ 183D VALLEY CONNECTIONS, L.L.C. - AZ 668      
928-701 5 Globe AZ 183D VALLEY CONNECTIONS, L.L.C. - AZ 668   2018-11-30   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.