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Region: CO

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-278 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-04-02   
720-278 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-03-09   
720-279 A Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-279 0 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2006-11-12   
720-279 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2006-11-12   
720-279 2 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-279 3 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-279 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2006-11-12   
720-279 5 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-279 6 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2002-07-09   
720-279 7 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2006-11-12   
720-279 8 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2006-11-12   
720-279 9 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2006-11-12   
720-280 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-281 A Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-281 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-281 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-281 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-09-15   
720-281 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-09-15   
720-281 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-09-15   
720-281 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-281 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-09-13   
720-281 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-01-19   
720-281 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-01-19   
720-281 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
720-282 A Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-282 0 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2006-02-05   
720-282 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-11-15   
720-282 2 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-282 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2002-12-16   
720-282 4 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2009-02-23   
720-282 5 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2009-02-23   
720-282 6 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2009-02-23   
720-282 7 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2009-02-23   
720-282 8 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2010-05-22   
720-282 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-04-29   
720-283 A Denver CO LTTNCOMADS0  9636 QWEST CORPORATION 656      
720-284 A Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-284 0 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-284 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-03-24   
720-284 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-03-24   
720-284 3 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-284 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-03-24   
720-284 5 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-284 6 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-284 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-03-24   
720-284 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-03-24   
720-284 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-03-24   
720-285 A Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656      
720-285 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-07-17   
720-285 1 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2009-03-30   
720-285 2 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2009-03-30   
720-285 3 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2009-03-30   
720-285 4 Denver CO ENWDCO47DS3  8980 XO COLORADO, LLC 656   2009-03-30   
720-285 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-07-17   
720-285 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-07-17   
720-285 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-07-17   
720-285 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-07-17   
720-285 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-07-17   
720-286 A Denver CO DNVRCOMDDS1  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-286 0 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-286 1 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-286 2 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-286 3 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-286 4 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-286 5 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-286 6 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-286 7 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-286 8 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-286 9 Denver CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2002-06-22   
720-287 A Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-287 0 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2010-06-14   
720-287 1 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2010-06-14   
720-287 2 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2010-06-14   
720-287 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2010-06-14   
720-287 4 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2010-06-14   
720-287 5 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2010-06-16   
720-287 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-07-23   
720-287 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-07-23   
720-287 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-07-23   
720-287 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2011-03-18   
720-288 A Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-288 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-288 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2010-07-02   
720-288 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2010-08-23   
720-288 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2010-07-02   
720-288 4 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2010-07-02   
720-288 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2010-08-12   
720-288 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2010-08-12   
720-288 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2010-08-12   
720-288 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2010-07-02   
720-288 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2010-07-02   
720-289 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-290 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-290 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-290 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-290 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-290 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-290 4 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-290 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      

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Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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