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: 306

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-306 A Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      
303-306 0 Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      
303-306 1 Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      
303-306 2 Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      
303-306 3 Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      
303-306 4 Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      
303-306 5 Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      
303-306 6 Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      
303-306 7 Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      
303-306 8 Denver CO ENWDCO47DS4  320E YMAX COMMUNICATIONS CORP. - CO 656   2008-08-29   
303-306 9 Denver CO DNVRCOSLDS0  9636 QWEST CORPORATION 656      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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