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: 437

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-437 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 4 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-437 9 Denver CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      

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

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