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: 348

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-348 A Denver CO DNVRCOOUDS0  9636 QWEST CORPORATION 656      
303-348 0 Denver CO   9636 QWEST CORPORATION 656      
303-348 1 Denver CO   9636 QWEST CORPORATION 656      
303-348 2 Denver CO   9636 QWEST CORPORATION 656      
303-348 3 Denver CO   9636 QWEST CORPORATION 656      
303-348 4 Denver CO   9636 QWEST CORPORATION 656      
303-348 5 Denver CO   9636 QWEST CORPORATION 656      
303-348 6 Denver CO   9636 QWEST CORPORATION 656      
303-348 7 Denver CO   9636 QWEST CORPORATION 656      
303-348 8 Denver CO   9636 QWEST CORPORATION 656      
303-348 9 Denver CO   939H COMMIO, LLC 656   2024-03-23   

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

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