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: 588

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-588 A Denver CO FTCLCOMA7MD  551G NUSO, LLC 656      
720-588 0 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2012-12-20   
720-588 1 Denver CO   551G NUSO, LLC 656   2012-12-19   
720-588 2 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2012-12-20   
720-588 3 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2012-12-20   
720-588 4 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2012-12-20   
720-588 5 Denver CO   6529 T-MOBILE USA, INC. 656   2012-12-20   
720-588 6 Denver CO   6529 T-MOBILE USA, INC. 656   2012-12-20   
720-588 7 Denver CO   6529 T-MOBILE USA, INC. 656   2012-12-20   
720-588 8 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2012-12-20   
720-588 9 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2012-12-20   

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

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