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: 414

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-414 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-414 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2022-06-24   
303-414 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-414 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-414 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2022-06-24   
303-414 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-414 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-414 6 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-414 7 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-414 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2022-06-24   
303-414 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2022-06-24   

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

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