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: DNVRCO26XSX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
720-866 A Denver CO 145J TERRA NOVA TELECOM INC. 656      
970-258 9 Montrose CO 145J TERRA NOVA TELECOM INC. 656      
970-338 8 Eaton CO 145J TERRA NOVA TELECOM INC. 656      
970-343 3 Vail CO 145J TERRA NOVA TELECOM INC. 656      
970-369 3 Telluride CO 145J TERRA NOVA TELECOM INC. 656      
970-418 1 Dillon CO 145J TERRA NOVA TELECOM INC. 656      
970-418 2 Dillon CO 145J TERRA NOVA TELECOM INC. 656      
970-452 3 Aspen CO 145J TERRA NOVA TELECOM INC. 656      
970-570 1 Cortez CO 145J TERRA NOVA TELECOM INC. 656      
970-576 7 Greeley CO 145J TERRA NOVA TELECOM INC. 656      
970-727 7 Crested Butte CO 145J TERRA NOVA TELECOM INC. 656      
970-887 6 Granby CO 145J TERRA NOVA TELECOM INC. 656      
970-922 4 Aspen CO 145J TERRA NOVA TELECOM INC. 656      
970-966 1 Loveland CO 145J TERRA NOVA TELECOM INC. 656      
970-995 9 New Castle CO 145J TERRA NOVA TELECOM INC. 656      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.