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Region: CO

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-519 1 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-519 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-10-10   
720-519 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-04-18   
720-519 4 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-519 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-08-10   
720-519 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-08-02   
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   
720-525 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-05-17   
720-525 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-05-17   
720-525 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-05-17   
720-525 4 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-05-17   
720-525 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-05-17   
720-525 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-05-17   
720-525 7 Denver CO DNVRCOII3MD  5562 METROPCS, INC. 656   2013-05-17   
720-525 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-02-07   
720-525 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-02-07   
720-526 A Longmont CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-526 0 Longmont CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-08-31   
720-526 1 Longmont CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-08-04   
720-526 2 Longmont CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-08-31   
720-526 3 Longmont CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-08-31   
720-526 4 Longmont CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-09-06   
720-526 5 Longmont CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-08-26   
720-526 6 Longmont CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2014-07-29   
720-526 7 Longmont CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-10-04   
720-526 8 Longmont CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-09-06   
720-526 9 Longmont CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-07-27   
720-527 A Denver CO DNVRCO26PS1  567G TELIAX, INC. - CO 656      
720-527 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-12-19   
720-527 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-12-19   
720-527 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-12-19   
720-527 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-12-19   
720-527 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-12-19   
720-527 5 Denver CO DNVRCO26PS1  567G TELIAX, INC. - CO 656   2017-12-18   
720-527 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-12-19   
720-527 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-12-19   
720-527 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-12-19   
720-527 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-12-19   
720-528 A Denver CO DNVRCODCDS0  9636 QWEST CORPORATION 656      
720-529 A Denver CO DNVRCODCDS0  9636 QWEST CORPORATION 656      
720-530 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-531 A Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-531 0 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-03   
720-531 1 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-09   
720-531 2 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2016-09-30   
720-531 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2016-09-30   
720-531 4 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2016-09-30   
720-531 5 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2016-09-30   
720-531 6 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-09   
720-531 7 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-09   
720-531 8 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-10-09   

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

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