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: 587

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-587 A Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-587 0 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-587 1 Denver CO FTCLCOMAAMD  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-587 2 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2009-06-16   
720-587 3 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-587 4 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-587 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-10-16   
720-587 6 Denver CO DNVRCOMADS8  7421 AT&T - LOCAL 656      
720-587 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2007-11-29   
720-587 8 Denver CO FTCLCOMAAMD  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-587 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2007-11-29   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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