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: 506

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-506 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-506 0 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2013-11-11   
720-506 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2013-07-15   
720-506 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2013-01-18   
720-506 3 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-10-30   
720-506 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-506 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2012-06-30   
720-506 6 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2011-06-21   
720-506 7 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2011-06-21   
720-506 8 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2011-06-21   
720-506 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2013-07-15   

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

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