Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

NXX: 573

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-573 A Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-573 0 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-573 1 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-573 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-573 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-573 4 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-573 5 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-573 6 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-573 7 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-573 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-573 9 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      

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

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