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: 715

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-715 A Mancos CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
970-715 0 Mancos CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2014-11-16   
970-715 1 Mancos CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2015-11-16   
970-715 2 Mancos CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2020-11-17   
970-715 4 Mancos CO   026D ONVOY, LLC - CO 656   2021-03-07   
970-715 5 Mancos CO   026D ONVOY, LLC - CO 656   2020-10-30   
970-715 6 Mancos CO   026D ONVOY, LLC - CO 656   2018-12-30   
970-715 7 Mancos CO   508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-11-18   
970-715 8 Mancos CO   026D ONVOY, LLC - CO 656   2018-12-30   
970-715 9 Mancos CO   073H TELNYX LLC 656   2018-05-02   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.