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: 453

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-453 A Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-453 0 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-453 1 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-453 2 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-453 3 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-453 4 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-453 5 Denver CO BRFDCOMADS0  9636 QWEST CORPORATION 656      
303-453 6 Denver CO BRFDCOMADS0  9636 QWEST CORPORATION 656      
303-453 7 Denver CO DNVRCO26XLX  939H COMMIO, LLC 656   2024-03-25   
303-453 8 Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-453 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2006-07-18   

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

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