Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
720-593 5 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2014-05-17   
720-593 7 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2014-05-17   
720-603 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-603 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2017-10-23   
720-612 5 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2012-06-08   
720-612 6 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2012-06-08   
720-625 6 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2012-07-12   
720-625 7 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2012-07-12   
720-646 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2015-11-22   
720-728 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-728 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2016-02-06   
720-744 4 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-07-22   
720-775 6 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-04-19   
720-979 0 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2008-04-19   
720-990 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-990 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2015-09-11   
970-286 6 Fort Collins CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2011-12-14   
970-573 3 Greeley CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2011-04-01   
970-601 2 Mead CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2015-05-29   
970-800 5 Loveland CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-04-04   

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

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