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: 458

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-458 A Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-458 0 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2010-12-16   
720-458 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-12-13   
720-458 2 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-11-11   
720-458 3 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2010-11-12   
720-458 4 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2010-11-12   
720-458 5 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2010-11-12   
720-458 6 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2010-11-12   
720-458 7 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2010-11-12   
720-458 8 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-12-13   
720-458 9 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-12-13   

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

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