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: 598

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-598 A Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-598 0 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2015-04-27   
720-598 1 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2015-04-27   
720-598 2 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2015-04-27   
720-598 3 Denver CO   829J PAETEC ITEL, LLC 656   2015-04-30   
720-598 4 Denver CO   829J PAETEC ITEL, LLC 656   2015-04-30   
720-598 5 Denver CO   318J COMCAST IP PHONE, LLC 656   2015-04-28   
720-598 6 Denver CO   318J COMCAST IP PHONE, LLC 656   2015-04-28   
720-598 7 Denver CO   508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-05-22   
720-598 8 Denver CO   026D ONVOY, LLC - CO 656   2015-04-28   
720-598 9 Denver CO   026D ONVOY, LLC - CO 656   2015-04-28   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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