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: 647

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-647 A Julesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-647 0 Julesburg CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2020-11-07   
970-647 1 Julesburg CO DNVTCOZICMD  515J IP HORIZON LLC 656   2024-07-12   
970-647 2 Julesburg CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656   2021-09-18   
970-647 3 Julesburg CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2023-01-06   
970-647 4 Julesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2020-10-30   
970-647 5 Julesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2020-12-18   
970-647 6 Julesburg CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2025-01-03   
970-647 7 Julesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2019-10-14   
970-647 8 Julesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2020-12-18   
970-647 9 Julesburg CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2022-01-26   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.