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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
303-409 5 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-493 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-493 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-493 4 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-515 8 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2012-02-17   
303-801 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2011-06-21   
303-802 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-802 1 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-802 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-803 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-803 1 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-803 9 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-834 4 Longmont CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2008-05-31   
303-957 9 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
303-999 4 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2008-05-07   
720-225 1 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2003-01-11   
720-225 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2003-01-11   
720-225 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2003-01-11   
720-225 4 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2003-01-11   
720-225 5 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2003-01-11   
720-225 6 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2003-01-11   
720-245 6 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2012-01-06   
720-278 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-278 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-279 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-279 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-279 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-279 5 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-279 6 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2002-07-09   
720-282 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-282 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-282 8 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-22   
720-305 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-305 0 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-347 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-347 4 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2009-11-12   
720-347 6 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2009-11-12   
720-354 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-354 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2011-08-21   
720-372 5 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2014-04-18   
720-387 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-387 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2012-10-26   
720-387 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2012-10-26   
720-387 4 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2012-10-26   
720-393 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-393 1 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-07-29   
720-393 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-07-29   
720-393 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-07-29   
720-393 4 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-07-29   
720-393 5 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-07-29   
720-393 6 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-07-29   
720-393 7 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-07-29   
720-393 8 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-07-29   
720-440 6 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2011-03-18   
720-456 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-456 3 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-09-06   
720-456 4 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-09-06   
720-458 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-458 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-11-11   
720-475 8 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2007-09-13   
720-478 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-490 4 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2007-09-13   
720-573 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-573 5 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2014-12-01   
720-587 2 Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2009-06-16   
720-593 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
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   
720-754 A Denver CO 4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
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   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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