Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 303 [Rate centres in NPA 303] [Dial plan for NPA 303]

NXX: 531

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-531 A Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-531 0 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-09-06   
303-531 1 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-531 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-09-06   
303-531 3 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-531 4 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 9 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      

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

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