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: 261

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-261 A Denver CO AURRCOMBRS1  9636 QWEST CORPORATION 656      
303-261 0 Denver CO AURRCOMBRS1  9636 QWEST CORPORATION 656      
303-261 1 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2001-07-25   
303-261 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2005-07-17   
303-261 3 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2004-09-04   
303-261 4 Denver CO AURRCOMBRS1  9636 QWEST CORPORATION 656      
303-261 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2004-11-27   
303-261 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2004-11-09   
303-261 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2004-11-09   
303-261 8 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2008-05-16   
303-261 9 Denver CO AURRCOMBRS1  9636 QWEST CORPORATION 656      

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

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