Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

NXX: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-356 A Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-356 0 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-356 1 Denver CO   829J PAETEC ITEL, LLC 656      
720-356 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-356 3 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-356 4 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-356 5 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-356 6 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-356 7 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-356 8 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-356 9 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      

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

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