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: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

NXX: 679

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-679 A Georgetown CO DNVTCOZIDS1  026D ONVOY, LLC CO 656      
720-679 0 Georgetown CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2020-03-12   
720-679 1 Georgetown CO DNVTCOZIDS1  026D ONVOY, LLC CO 656   2020-08-08   
720-679 2 Georgetown CO DNVTCOZIDS1  026D ONVOY, LLC CO 656   2019-12-12   
720-679 3 Georgetown CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2020-08-08   
720-679 4 Georgetown CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2020-08-08   
720-679 5 Georgetown CO DNVTCOZIDS1  026D ONVOY, LLC CO 656   2020-04-24   
720-679 6 Georgetown CO DNVTCOZIDS1  026D ONVOY, LLC CO 656   2019-12-12   
720-679 7 Georgetown CO DNVTCOZIDS1  026D ONVOY, LLC CO 656   2019-10-14   
720-679 8 Georgetown CO DNVTCOZIDS1  026D ONVOY, LLC CO 656   2020-04-24   
720-679 9 Georgetown CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2020-08-08   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.