Local Calling Guide

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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
720-419 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-05-14   
720-419 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-05-14   
720-419 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-05-14   
720-420 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-420 0 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2010-09-19   
720-420 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-07-17   
720-420 2 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2010-08-04   
720-420 3 Denver CO DNVRCO03DS1  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2010-07-29   
720-420 4 Denver CO DNVRCO03DS1  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2010-07-29   
720-420 5 Denver CO DNVRCO03DS1  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2010-07-29   
720-420 6 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-08-14   
720-420 7 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-08-14   
720-420 8 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2010-08-04   
720-420 9 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2010-09-19   
720-421 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-421 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-421 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-421 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-421 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-421 4 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-421 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-421 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-421 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-421 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-421 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
720-422 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-423 A Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656      
720-423 0 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-423 1 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-423 2 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-423 3 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-423 4 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-07-15   
720-423 5 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-423 6 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-423 7 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-423 8 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-07-15   
720-423 9 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 A Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656      
720-424 0 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 1 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 2 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 3 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 4 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 5 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 6 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 7 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 8 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 9 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-425 A Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-425 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-07   
720-425 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-07   
720-425 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-07   
720-425 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-28   
720-425 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-28   
720-425 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-28   
720-425 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-08-11   
720-425 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-09-22   
720-425 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-09-29   
720-425 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-08-11   
720-426 A Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656      
720-426 0 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 1 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 2 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 3 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 4 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 5 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 6 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 7 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 8 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 9 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-427 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-428 A Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-428 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2012-07-13   
720-428 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2012-07-13   
720-428 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-02-02   
720-428 3 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 4 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 5 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 6 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 7 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2012-06-28   
720-428 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2012-07-13   
720-429 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-429 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-430 A Denver CO DNVRCOMAX5Z  7421 AT&T - LOCAL 656      
720-430 0 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 1 Denver CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-04-06   
720-430 2 Denver CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-04-06   
720-430 3 Denver CO   883K AHOI LLC 656   2026-04-06   
720-430 4 Denver CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-04-27   
720-430 5 Denver CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2026-04-27   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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