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Denver, CO

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
720-742 A DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-742 0   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-742 1   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-742 2   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-742 3   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-742 4   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-742 5   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-742 6   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-742 7   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-742 8   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-742 9   6529 T-MOBILE USA, INC. 656   2020-11-08   
720-744 A DNVRCOSLDS0  9636 QWEST CORPORATION 656      
720-744 0   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-04-14   
720-744 1   9636 QWEST CORPORATION 656   2006-02-20   
720-744 2   078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-04-14   
720-744 3   026D ONVOY, LLC - CO 656   2013-04-14   
720-744 4   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2013-07-22   
720-744 5   9636 QWEST CORPORATION 656      
720-744 6   9636 QWEST CORPORATION 656      
720-744 7   9636 QWEST CORPORATION 656      
720-744 8   9636 QWEST CORPORATION 656      
720-744 9   9636 QWEST CORPORATION 656      
720-746 A LKMTCOMADS1  9636 QWEST CORPORATION 656      
720-746 0   9636 QWEST CORPORATION 656      
720-746 1   9636 QWEST CORPORATION 656      
720-746 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2007-01-07   
720-746 3   9636 QWEST CORPORATION 656      
720-746 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2007-01-07   
720-746 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2007-01-07   
720-746 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2007-01-07   
720-746 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2007-01-07   
720-746 8   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-06-18   
720-746 9   318J COMCAST IP PHONE, LLC 656   2009-06-18   
720-747 A DNVRCOSLDS0  9636 QWEST CORPORATION 656      
720-748 A DNVRCOSLDS0  9636 QWEST CORPORATION 656      
720-749 A DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-749 0   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2015-11-17   
720-749 1   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2015-11-16   
720-749 2   318J COMCAST IP PHONE, LLC 656   2015-11-17   
720-749 3   318J COMCAST IP PHONE, LLC 656   2015-11-17   
720-749 4   318J COMCAST IP PHONE, LLC 656   2015-11-17   
720-749 5   318J COMCAST IP PHONE, LLC 656   2015-11-17   
720-749 6   318J COMCAST IP PHONE, LLC 656   2015-11-17   
720-749 7   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2015-11-17   
720-749 8   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2015-11-17   
720-749 9   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2015-11-17   
720-750 A DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-750 0   6529 T-MOBILE USA, INC. 656   2019-03-14   
720-750 1   6529 T-MOBILE USA, INC. 656   2019-03-14   
720-750 2   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2019-05-01   
720-750 3   6529 T-MOBILE USA, INC. 656   2019-03-28   
720-750 4   318J COMCAST IP PHONE, LLC 656   2019-03-15   
720-750 5   318J COMCAST IP PHONE, LLC 656   2019-03-15   
720-750 6   318J COMCAST IP PHONE, LLC 656   2019-03-15   
720-750 7   318J COMCAST IP PHONE, LLC 656   2019-03-15   
720-750 8   318J COMCAST IP PHONE, LLC 656   2019-03-15   
720-750 9   5562 METROPCS, INC. 656   2019-03-14   
720-751 A DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-751 0   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2020-07-13   
720-751 1   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2020-07-13   
720-751 2   508J CENTURYLINK COMMUNICATIONS, LLC 656   2020-03-10   
720-751 3   6529 T-MOBILE USA, INC. 656   2020-03-09   
720-751 4   6529 T-MOBILE USA, INC. 656   2020-03-09   
720-751 5   6529 T-MOBILE USA, INC. 656   2020-03-09   
720-751 6   6529 T-MOBILE USA, INC. 656   2020-03-09   
720-751 7   6529 T-MOBILE USA, INC. 656   2020-03-09   
720-751 8   6529 T-MOBILE USA, INC. 656   2020-03-09   
720-751 9   6529 T-MOBILE USA, INC. 656   2020-03-09   
720-752 A DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-752 0   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-752 1   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-752 2   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-752 3   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-752 4   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-752 5   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-752 6   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-752 7   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-752 8   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-752 9   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-10-08   
720-754 A AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-754 0   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-754 1   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-754 2   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-754 3   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-754 4   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-754 5   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-754 6   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-754 7   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-754 8   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-754 9   4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-21   
720-755 A DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-755 0   6529 T-MOBILE USA, INC. 656   2015-10-31   
720-755 1   6529 T-MOBILE USA, INC. 656   2015-10-31   
720-755 2   6529 T-MOBILE USA, INC. 656   2016-04-21   
720-755 3   6529 T-MOBILE USA, INC. 656   2016-04-21   
720-755 4   6529 T-MOBILE USA, INC. 656   2016-04-21   
720-755 5   6529 T-MOBILE USA, INC. 656   2016-04-21   
720-755 6   6529 T-MOBILE USA, INC. 656   2015-10-30   
720-755 7   6529 T-MOBILE USA, INC. 656   2015-10-30   
720-755 8   6529 T-MOBILE USA, INC. 656   2015-10-30   

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

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