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: 216

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-216 A Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-216 0 Denver CO   318J COMCAST IP PHONE, LLC 656      
720-216 1 Denver CO   318J COMCAST IP PHONE, LLC 656      
720-216 2 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-03-28   
720-216 3 Denver CO   6529 T-MOBILE USA, INC. 656   2009-07-29   
720-216 4 Denver CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-06-09   
720-216 5 Denver CO   318J COMCAST IP PHONE, LLC 656      
720-216 6 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-216 7 Denver CO   6529 T-MOBILE USA, INC. 656   2005-11-11   
720-216 8 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-216 9 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      

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

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