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: 607

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-607 A Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      
303-607 0 Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      
303-607 1 Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      
303-607 2 Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      
303-607 3 Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      
303-607 4 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
303-607 5 Denver CO DNVRCOSODS0  9636 QWEST CORPORATION 656      
303-607 6 Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      
303-607 7 Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      
303-607 8 Denver CO   508J CENTURYLINK COMMUNICATIONS, LLC 656      
303-607 9 Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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