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Region: CO

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-542 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2007-09-21   
720-542 9 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2007-09-21   
720-543 A Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 0 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-543 1 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-543 2 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-543 3 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-543 4 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-543 5 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-543 6 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-543 7 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-543 8 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-543 9 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-12-05   
720-544 A Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 0 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-05-18   
720-544 2 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-08-24   
720-544 4 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 5 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 6 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2007-11-16   
720-544 7 Denver CO   026D ONVOY, LLC - CO 656   2008-04-11   
720-544 8 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-10-10   
720-545 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-545 0 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2009-07-27   
720-545 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2009-07-27   
720-545 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2009-07-27   
720-545 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-08-25   
720-545 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-09-12   
720-545 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-09-14   
720-545 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-09-14   
720-545 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-09-14   
720-545 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2009-09-14   
720-545 9 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2009-09-04   
720-546 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 0 Denver CO DNVRCOII3MD  5562 METROPCS, INC. 656   2017-06-19   
720-546 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-12-08   
720-546 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-10-20   
720-546 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-10-20   
720-546 4 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-10-20   
720-546 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-10-20   
720-546 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-10-20   
720-546 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-10-20   
720-546 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-10-20   
720-546 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2016-10-20   
720-547 A Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-547 0 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-06-01   
720-547 1 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-06-01   
720-547 2 Keenesburg CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2018-09-20   
720-547 3 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-10-18   
720-547 4 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-12-07   
720-547 5 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2019-04-20   
720-547 6 Keenesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-12-30   
720-547 7 Keenesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-12-30   
720-547 8 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-09-22   
720-547 9 Keenesburg CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2018-11-16   
720-548 A Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-05-18   
720-548 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 3 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 6 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-10-12   
720-548 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2007-10-12   
720-548 9 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-549 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-549 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-04-29   
720-549 1 Denver CO DNVRCOII3MD  5562 METROPCS, INC. 656   2013-11-11   
720-549 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
720-549 3 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
720-549 4 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
720-549 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
720-549 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
720-549 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2011-09-05   
720-549 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2011-09-05   
720-549 9 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-12-10   
720-550 A Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656      
720-550 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-08-27   
720-550 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-08-27   
720-550 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2013-08-27   
720-550 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2013-08-27   
720-550 4 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2013-08-25   
720-550 5 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2013-08-25   
720-550 6 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2013-08-27   
720-550 7 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2013-08-27   
720-550 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2013-08-27   
720-550 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2013-08-27   
720-551 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-551 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2011-05-30   
720-551 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2011-05-30   
720-551 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2011-05-30   
720-551 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2011-05-30   
720-551 4 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-06-01   
720-551 5 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-06-01   
720-551 6 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-06-01   
720-551 7 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-06-01   
720-551 8 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-06-01   

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

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