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Region: CO

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-717 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-04-17   
720-717 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-04-17   
720-718 A Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656      
720-718 0 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 1 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 2 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 3 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 4 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 5 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 6 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 7 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 8 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 9 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-719 A Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 2 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 4 Denver CO DNVRCOMA53Z  732J NUSO, LLC 656   2024-08-02   
720-719 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-719 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-719 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-719 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-719 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-720 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-721 A Denver CO DNVRCOMA37Z  507J THE VOICE APPLICATION NETWORK, LLC 656      
720-721 0 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-06-12   
720-721 1 Denver CO DNVRCOMA37Z  507J THE VOICE APPLICATION NETWORK, LLC 656   2016-06-12   
720-721 2 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-06-12   
720-721 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2016-08-15   
720-721 4 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-09-01   
720-721 5 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-09-01   
720-721 6 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-09-01   
720-721 7 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-06-12   
720-721 8 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-09-01   
720-721 9 Denver CO   321J HD CARRIER LLC 656   2016-09-01   
720-722 A Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-722 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 2 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 4 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 5 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 6 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 7 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2010-06-30   
720-722 8 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-723 A Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656      
720-723 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-04-09   
720-723 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-04-09   
720-723 2 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-04-16   
720-723 3 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 4 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 5 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 6 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 7 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-04-09   
720-723 9 Denver CO DNVRCOII3MD  5562 METROPCS, INC. 656   2013-12-25   
720-724 A Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656      
720-724 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-06-09   
720-724 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-06-09   
720-724 2 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-05-31   
720-724 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-06-27   
720-724 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-06-27   
720-724 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-07-08   
720-724 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-07-08   
720-724 7 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2013-06-21   
720-724 8 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2013-06-21   
720-724 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2013-06-21   
720-725 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-725 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-08-08   
720-725 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2015-08-07   
720-725 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2015-08-07   
720-725 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2015-08-07   
720-725 4 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2015-08-07   
720-725 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2015-08-07   
720-725 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2015-08-07   
720-725 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2015-08-07   
720-725 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2015-08-07   
720-725 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2015-08-07   
720-726 A Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-726 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-12-16   
720-726 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2013-12-16   
720-726 2 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 4 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 5 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 6 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 7 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2013-12-13   
720-726 8 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2014-01-11   

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

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