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: 299

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-299 A Cortez CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-299 0 Cortez CO   515J IP HORIZON LLC 656   2022-04-29   
970-299 1 Cortez CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656   2021-11-04   
970-299 2 Cortez CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2020-07-01   
970-299 3 Cortez CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2020-07-01   
970-299 4 Cortez CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2020-07-01   
970-299 5 Cortez CO DNVRCOMA40Z  506J TWILIO INTERNATIONAL, INC. 656   2020-12-18   
970-299 6 Cortez CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2021-05-23   
970-299 7 Cortez CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2021-05-23   
970-299 8 Cortez CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-299 9 Cortez CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.