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: 970 [Rate centres in NPA 970] [Dial plan for NPA 970]

NXX: 913

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-913 A La Salle CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2025-11-07   
970-913 0 La Salle CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2025-11-07   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.