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.

Allison, CO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
970-788 A DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-788 0 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-788 1 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-788 2 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-788 3 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-788 5 HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656      
970-788 6 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-788 7 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-788 8 DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656      
970-843 A DNVRCO26XLX  939H COMMIO, LLC 656      
970-843 0 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
970-843 1 DNVRCO26XLX  939H COMMIO, LLC 656      
970-843 2 DNVRCO26XLX  939H COMMIO, LLC 656      
970-843 5 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-843 8   939H COMMIO, LLC 656      
970-843 9   939H COMMIO, LLC 656      
970-883 A ALSNCOXCRS1  2208 CENTURYTEL OF COLORADO, INC. DBA CENTURYLINK 656      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.