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: 478

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-478 A Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-478 0 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   
720-478 1 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   
720-478 2 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   
720-478 3 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   
720-478 4 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   
720-478 5 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   
720-478 6 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   
720-478 7 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   
720-478 8 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   
720-478 9 Denver CO   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-06-22   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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