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NPA: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-519 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-08-02   
720-519 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-08-02   
720-519 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-08-02   
720-520 A Denver CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656      
720-520 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-01   
720-520 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-01   
720-520 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-01   
720-520 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-01   
720-520 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-01   
720-520 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-31   
720-520 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-31   
720-520 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-31   
720-520 8 Denver CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2016-06-12   
720-520 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-31   
720-521 A Denver CO ENWDCOVF0MD  9748 AMERICAN MESSAGING SERVICES, LLC 656      
720-522 A Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-522 0 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-522 1 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-522 2 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-522 3 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-522 4 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-522 5 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-522 6 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-522 7 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-522 8 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-522 9 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-01-17   
720-523 A Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656      
720-523 0 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2011-06-11   
720-523 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2012-02-19   
720-523 2 Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656   2010-07-12   
720-523 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-11-26   
720-523 4 Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656   2010-07-12   
720-523 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-11-12   
720-523 6 Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656   2010-07-12   
720-523 7 Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656   2010-07-12   
720-523 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-08-14   
720-523 9 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2012-02-19   
720-524 A Denver CO DNVRCOSEDS0  9636 QWEST CORPORATION 656      
720-524 0 Denver CO DNVRCOSEDS0  9636 QWEST CORPORATION 656      
720-524 1 Denver CO DNVRCOSEDS0  9636 QWEST CORPORATION 656      
720-524 2 Denver CO DNVRCOSEDS0  9636 QWEST CORPORATION 656      
720-524 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2007-09-21   
720-524 4 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2007-09-21   
720-524 5 Denver CO DNVRCOSEDS0  9636 QWEST CORPORATION 656      
720-524 6 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2007-09-21   
720-524 7 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2007-09-21   
720-524 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2007-09-21   
720-524 9 Denver CO DNVRCOSEDS0  9636 QWEST CORPORATION 656      
720-525 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-525 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-05-17   

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Last updated: Fri, 10 Jul 2026 02:55:48 UTC

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