Local Calling Guide

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

NXX: 493

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-493 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-493 0 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-493 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2007-10-20   
303-493 2 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-493 3 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-493 4 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-493 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-493 6 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-493 7 Denver CO DNVRCOEADS0  9636 QWEST CORPORATION 656      
303-493 8 Denver CO DNVRCOEADS0  9636 QWEST CORPORATION 656      
303-493 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2021-08-25   

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

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