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: 248

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-248 A Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-248 0 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-03   
720-248 1 Denver CO   026D ONVOY, LLC - CO 656      
720-248 2 Denver CO   026D ONVOY, LLC - CO 656   2006-07-10   
720-248 3 Denver CO   026D ONVOY, LLC - CO 656   2006-07-10   
720-248 4 Denver CO   026D ONVOY, LLC - CO 656   2006-07-10   
720-248 5 Denver CO   026D ONVOY, LLC - CO 656   2006-07-10   
720-248 6 Denver CO   026D ONVOY, LLC - CO 656   2006-07-10   
720-248 7 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-02-20   
720-248 8 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-02-20   
720-248 9 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-03   

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

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