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: 580

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-580 A Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-580 0 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-580 1 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-580 2 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-580 3 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-580 4 Keenesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-580 5 Keenesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-580 6 Keenesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-580 7 Keenesburg CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-580 8 Keenesburg CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-580 9 Keenesburg CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 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.