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Region: CO

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-424 5 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 6 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 7 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 8 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-424 9 Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656   2004-06-15   
720-425 A Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-425 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-07   
720-425 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-07   
720-425 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-07   
720-425 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-28   
720-425 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-28   
720-425 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-07-28   
720-425 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-08-11   
720-425 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-09-22   
720-425 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-09-29   
720-425 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-08-11   
720-426 A Denver CO DNVRCOCHDS0  9636 QWEST CORPORATION 656      
720-426 0 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 1 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 2 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 3 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 4 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 5 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 6 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 7 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 8 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-426 9 Denver CO   9636 QWEST CORPORATION 656   2010-05-20   
720-427 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-428 A Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-428 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2012-07-13   
720-428 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2012-07-13   
720-428 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-02-02   
720-428 3 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 4 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 5 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 6 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 7 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2012-06-07   
720-428 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2012-06-28   
720-428 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2012-07-13   
720-429 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-429 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-429 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2008-08-23   
720-430 A Denver CO DNVRCOMAX5Z  7421 AT&T - LOCAL 656      
720-430 0 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 1 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 2 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 3 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 4 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 5 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 6 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 7 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 8 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-430 9 Denver CO   7421 AT&T - LOCAL 656   2012-08-20   
720-431 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-431 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-11-20   
720-431 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-11-20   
720-431 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-11-20   
720-431 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-11-20   
720-431 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-11-20   
720-431 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-11-20   
720-431 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-11-20   
720-431 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-12-31   
720-431 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-12-31   
720-431 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2010-12-31   
720-432 A Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-432 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-432 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-432 2 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-432 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-432 4 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-432 5 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-432 6 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-432 7 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-432 8 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-432 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-04-29   
720-433 A Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656      
720-433 0 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-433 1 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-433 2 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-433 3 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-433 4 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-433 5 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-433 6 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-433 7 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-433 8 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-433 9 Denver CO CSRKCONMDS0  9636 QWEST CORPORATION 656   2009-05-08   
720-434 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-435 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-436 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-437 A Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-437 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2011-03-25   
720-437 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2011-04-09   

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

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