Local Calling Guide

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Region: CO

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-509 0 Denver CO   026D ONVOY, LLC - CO 656   2025-09-05   
720-509 1 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 2 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 3 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 4 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 5 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 6 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 7 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-05-31   
720-509 8 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2010-06-16   
720-509 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-510 A Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-510 0 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2017-07-31   
720-510 1 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-26   
720-510 2 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-26   
720-510 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-26   
720-510 4 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2017-07-31   
720-510 5 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2017-07-31   
720-510 6 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2017-07-31   
720-510 7 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-08-05   
720-510 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-31   
720-510 9 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-31   
720-512 A Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-512 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-06-30   
720-512 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-01   
720-512 2 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2016-06-23   
720-512 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2016-06-23   
720-512 4 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2016-06-23   
720-512 5 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2016-06-23   
720-512 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-25   
720-512 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-25   
720-512 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-25   
720-512 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-07-25   
720-513 A Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-513 0 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-513 1 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-513 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-513 3 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-513 4 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-513 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-513 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-513 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-513 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-513 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2017-09-24   
720-514 A Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2008-03-07   
720-514 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-07-20   
720-514 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-10-12   
720-514 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-10-12   
720-514 4 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 5 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 6 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 7 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 8 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-514 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-04-16   
720-515 A Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-515 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 2 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 4 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 5 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 6 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 7 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 8 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-515 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-12   
720-516 A Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656      
720-516 0 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-516 1 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-516 2 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-516 3 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-516 4 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-516 5 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-516 6 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-516 7 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-516 8 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-516 9 Denver CO LTTNCOHLDS0  9636 QWEST CORPORATION 656   2017-08-20   
720-517 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-517 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-517 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-517 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-517 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-517 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-517 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-517 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-517 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-517 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-517 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-14   
720-518 A Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656      
720-518 0 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2014-07-21   
720-518 1 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2014-07-21   
720-518 2 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2014-07-18   
720-518 3 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2014-07-21   
720-518 4 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2014-07-21   
720-518 5 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2014-07-21   
720-518 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-07-21   
720-518 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-07-21   
720-518 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-07-21   
720-518 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-07-21   
720-519 A Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-519 0 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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