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Denver, CO

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
720-448 6   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-08-29   
720-448 7   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-07-28   
720-448 8   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-07-28   
720-448 9   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-07-28   
720-449 A DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-449 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-449 1   078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-04-29   
720-449 2   078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-08-28   
720-449 3   078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-08-28   
720-449 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2014-03-31   
720-449 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-03-23   
720-449 6   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-04-14   
720-449 7   026D ONVOY, LLC - CO 656   2010-04-08   
720-449 8   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2013-04-26   
720-449 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-450 A DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-450 0   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-04-04   
720-450 1   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-04-04   
720-450 2   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-04-04   
720-450 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2014-02-22   
720-450 4   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-04-04   
720-450 5   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-04-04   
720-450 6   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-04-04   
720-450 7   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-04-04   
720-450 8   026D ONVOY, LLC - CO 656   2014-04-03   
720-450 9   026D ONVOY, LLC - CO 656   2014-04-03   
720-451 A DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-451 0   5562 METROPCS, INC. 656   2013-12-16   
720-451 1   5562 METROPCS, INC. 656   2013-12-26   
720-451 2   5562 METROPCS, INC. 656   2013-12-26   
720-451 3   5562 METROPCS, INC. 656   2013-12-26   
720-451 4   5562 METROPCS, INC. 656   2013-12-26   
720-451 5   5562 METROPCS, INC. 656   2013-12-30   
720-451 6   5562 METROPCS, INC. 656   2013-12-30   
720-451 7   5562 METROPCS, INC. 656   2013-12-30   
720-451 8   5562 METROPCS, INC. 656   2014-01-08   
720-451 9   6529 T-MOBILE USA, INC. 656   2014-02-23   
720-452 A DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-452 0   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-452 1   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-452 2   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-452 3   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-452 4   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-452 5   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-452 6   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-452 7   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-452 8   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-452 9   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2011-02-18   
720-454 A DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656      
720-454 0   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2010-10-13   
720-454 1   829J PAETEC ITEL, LLC 656   2010-10-09   
720-454 2   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2010-10-13   
720-454 3   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2010-10-13   
720-454 4   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2010-11-11   
720-454 5   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2010-11-11   
720-454 6   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2010-11-11   
720-454 7   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-10-16   
720-454 8   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-10-16   
720-454 9   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-10-16   
720-455 A CSRKCONMDS0  9636 QWEST CORPORATION 656      
720-455 0   9636 QWEST CORPORATION 656   2010-08-28   
720-455 1   9636 QWEST CORPORATION 656   2010-08-28   
720-455 2   9636 QWEST CORPORATION 656   2010-08-28   
720-455 3   9636 QWEST CORPORATION 656   2010-08-28   
720-455 4   9636 QWEST CORPORATION 656   2010-08-28   
720-455 5   9636 QWEST CORPORATION 656   2010-08-28   
720-455 6   9636 QWEST CORPORATION 656   2010-08-28   
720-455 7   9636 QWEST CORPORATION 656   2010-08-28   
720-455 8   9636 QWEST CORPORATION 656   2010-08-28   
720-455 9   9636 QWEST CORPORATION 656   2010-08-28   
720-456 A AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-456 0   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-09-23   
720-456 1   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-09-23   
720-456 2   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-09-23   
720-456 3   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-09-06   
720-456 4   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-09-06   
720-456 5   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-09-23   
720-456 6   318J COMCAST IP PHONE, LLC 656   2013-09-13   
720-456 7   318J COMCAST IP PHONE, LLC 656   2013-09-13   
720-456 8   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-09-09   
720-456 9   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-09-09   
720-457 A DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-457 0   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2008-08-05   
720-457 1   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2008-08-05   
720-457 2   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2008-08-05   
720-457 3   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2008-08-05   
720-457 4   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2008-08-05   
720-457 5   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2008-08-05   
720-457 6   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2008-08-05   
720-457 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2008-11-05   
720-457 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2008-11-05   
720-457 9   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2008-08-05   
720-458 A AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-458 0   318J COMCAST IP PHONE, LLC 656   2010-12-16   
720-458 1   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-12-13   
720-458 2   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-11-11   
720-458 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-11-12   
720-458 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-11-12   
720-458 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-11-12   
720-458 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-11-12   

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

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