Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: ENWDCO47DS3

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
720-230 A Denver CO 8980 XO COLORADO, LLC 656      
720-230 0 Denver CO 8980 XO COLORADO, LLC 656      
720-230 4 Denver CO 8980 XO COLORADO, LLC 656      
720-230 5 Denver CO 8980 XO COLORADO, LLC 656      
720-230 7 Denver CO 8980 XO COLORADO, LLC 656   2010-01-18   
720-230 9 Denver CO 8980 XO COLORADO, LLC 656      
720-285 A Denver CO 8980 XO COLORADO, LLC 656      
720-285 1 Denver CO 8980 XO COLORADO, LLC 656   2009-03-30   
720-285 2 Denver CO 8980 XO COLORADO, LLC 656   2009-03-30   
720-285 3 Denver CO 8980 XO COLORADO, LLC 656   2009-03-30   
720-285 4 Denver CO 8980 XO COLORADO, LLC 656   2009-03-30   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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