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Denver, CO

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
720-506 4   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-506 5   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2012-06-30   
720-506 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-06-21   
720-506 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-06-21   
720-506 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-06-21   
720-506 9   078F BANDWIDTH.COM CLEC, LLC - CO 656   2013-07-15   
720-507 A DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-507 0   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-507 1   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-507 2   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-507 3   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-507 4   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-507 5   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-507 6   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-507 7   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-507 8   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-507 9   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-12-21   
720-508 A DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656      
720-508 0   6529 T-MOBILE USA, INC. 656   2012-09-11   
720-508 1   026D ONVOY, LLC - CO 656   2012-08-24   
720-508 2   026D ONVOY, LLC - CO 656   2012-08-24   
720-508 3   318J COMCAST IP PHONE, LLC 656   2012-08-24   
720-508 4   318J COMCAST IP PHONE, LLC 656   2012-08-24   
720-508 5   026D ONVOY, LLC - CO 656   2012-08-24   
720-508 6   9636 QWEST CORPORATION 656   2012-09-22   
720-508 7   829J PAETEC ITEL, LLC 656   2012-09-22   
720-508 8   3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2012-08-23   
720-508 9   6529 T-MOBILE USA, INC. 656   2012-08-24   
720-509 A DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-509 0   026D ONVOY, LLC - CO 656   2025-09-05   
720-509 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 8   829J PAETEC ITEL, LLC 656   2010-06-16   
720-509 9   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-510 A DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-510 0   3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2017-07-31   
720-510 1   318J COMCAST IP PHONE, LLC 656   2017-07-26   
720-510 2   318J COMCAST IP PHONE, LLC 656   2017-07-26   
720-510 3   318J COMCAST IP PHONE, LLC 656   2017-07-26   
720-510 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2017-07-31   
720-510 5   3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2017-07-31   
720-510 6   3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2017-07-31   
720-510 7   508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-08-05   
720-510 8   318J COMCAST IP PHONE, LLC 656   2017-07-31   
720-510 9   318J COMCAST IP PHONE, LLC 656   2017-07-31   
720-512 A DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-512 0   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-06-30   
720-512 1   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-01   
720-512 2   318J COMCAST IP PHONE, LLC 656   2016-06-23   
720-512 3   318J COMCAST IP PHONE, LLC 656   2016-06-23   
720-512 4   318J COMCAST IP PHONE, LLC 656   2016-06-23   
720-512 5   318J COMCAST IP PHONE, LLC 656   2016-06-23   
720-512 6   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-25   
720-512 7   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-25   
720-512 8   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-25   
720-512 9   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-25   
720-513 A DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-513 0   026D ONVOY, LLC - CO 656   2017-09-24   
720-513 1   026D ONVOY, LLC - CO 656   2017-09-24   
720-513 2   026D ONVOY, LLC - CO 656   2017-09-24   
720-513 3   026D ONVOY, LLC - CO 656   2017-09-24   
720-513 4   026D ONVOY, LLC - CO 656   2017-09-24   
720-513 5   026D ONVOY, LLC - CO 656   2017-09-24   
720-513 6   026D ONVOY, LLC - CO 656   2017-09-24   
720-513 7   026D ONVOY, LLC - CO 656   2017-09-24   
720-513 8   026D ONVOY, LLC - CO 656   2017-09-24   
720-513 9   026D ONVOY, LLC - CO 656   2017-09-24   
720-514 A AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 0   6529 T-MOBILE USA, INC. 656   2008-03-07   
720-514 1   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-07-20   
720-514 2   6529 T-MOBILE USA, INC. 656   2007-10-12   
720-514 3   6529 T-MOBILE USA, INC. 656   2007-10-12   
720-514 4   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 5   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 6   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 7   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 8   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 9   078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-04-16   
720-515 A DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-515 0   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 1   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 2   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 3   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 4   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 5   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 6   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 7   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 8   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 9   078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-516 A LTTNCOHLDS0  9636 QWEST CORPORATION 656      
720-516 0   9636 QWEST CORPORATION 656   2017-08-20   
720-516 1   9636 QWEST CORPORATION 656   2017-08-20   
720-516 2   9636 QWEST CORPORATION 656   2017-08-20   
720-516 3   9636 QWEST CORPORATION 656   2017-08-20   
720-516 4   9636 QWEST CORPORATION 656   2017-08-20   

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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