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: 314

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-314 A Denver CO DNVRCOEADS0  9636 QWEST CORPORATION 656      
303-314 0 Denver CO   9636 QWEST CORPORATION 656      
303-314 1 Denver CO   9636 QWEST CORPORATION 656      
303-314 2 Denver CO   508J CENTURYLINK COMMUNICATIONS, LLC 656      
303-314 3 Denver CO   9636 QWEST CORPORATION 656      
303-314 4 Denver CO   9636 QWEST CORPORATION 656      
303-314 5 Denver CO   9636 QWEST CORPORATION 656      
303-314 6 Denver CO   9636 QWEST CORPORATION 656      
303-314 7 Denver CO   9636 QWEST CORPORATION 656      
303-314 8 Denver CO   9636 QWEST CORPORATION 656      
303-314 9 Denver CO   9636 QWEST CORPORATION 656      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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