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: 645

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-645 A Denver CO ENWDCOABDS0  9636 QWEST CORPORATION 656      
303-645 0 Denver CO ENWDCOABDS0  9636 QWEST CORPORATION 656      
303-645 1 Denver CO ENWDCOABDS0  9636 QWEST CORPORATION 656      
303-645 2 Denver CO ENWDCOABDS0  9636 QWEST CORPORATION 656      
303-645 3 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-04-17   
303-645 4 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2006-09-14   
303-645 5 Denver CO ENWDCOABDS0  9636 QWEST CORPORATION 656      
303-645 6 Denver CO ENWDCOABDS0  9636 QWEST CORPORATION 656      
303-645 7 Denver CO ENWDCOABDS0  9636 QWEST CORPORATION 656      
303-645 8 Denver CO ENWDCOABDS0  9636 QWEST CORPORATION 656      
303-645 9 Denver CO ENWDCOABDS0  9636 QWEST CORPORATION 656      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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