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: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-457 A Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-457 0 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-457 1 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-457 2 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-457 3 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-457 4 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-457 5 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2006-03-26   
303-457 6 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-457 7 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-457 8 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-457 9 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      

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

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