Local Calling Guide

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NPA: 303 [Rate centres in NPA 303] [Dial plan for NPA 303]

NXX: 731

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-731 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-731 0 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2004-10-21   
303-731 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2004-10-26   
303-731 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2005-07-01   
303-731 3 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2005-07-01   
303-731 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-731 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2005-07-01   
303-731 6 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2005-07-01   
303-731 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2006-07-16   
303-731 8 Denver CO DNVTCOUZAMD  4788 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - CO 656   2009-09-15   
303-731 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2005-08-12   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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