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: 814

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-814 A Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-814 1 Durango CO   515J IP HORIZON LLC 656   2022-04-29   
970-814 2 Durango CO DNVRCOII4MD  5562 METROPCS, INC. 656   2023-09-17   
970-814 3 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2024-01-21   
970-814 4 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2024-01-21   
970-814 5 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2022-05-20   
970-814 6 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2022-05-20   
970-814 7 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2022-05-20   
970-814 8 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2022-03-28   
970-814 9 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2022-03-28   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.