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: 726

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-726 A Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-726 0 Denver CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-12-16   
720-726 1 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2013-12-16   
720-726 2 Denver CO   318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 3 Denver CO   318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 4 Denver CO   318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 5 Denver CO   318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 6 Denver CO   318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 7 Denver CO   318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 8 Denver CO   829J PAETEC ITEL, LLC 656   2014-01-11   
720-726 9 Denver CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-02-08   

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

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