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NPA: 303 [Rate centres in NPA 303] [Dial plan for NPA 303]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-531 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-09-06   
303-531 3 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-531 4 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2002-07-24   
303-531 9 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-532 A Longmont CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656      
303-532 0 Longmont CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2004-11-22   
303-532 1 Longmont CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2004-11-21   
303-532 2 Longmont CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2001-07-25   
303-532 3 Longmont CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2001-09-05   
303-532 4 Longmont CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2003-01-06   
303-532 5 Longmont CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2004-12-10   
303-532 6 Longmont CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2005-07-18   
303-532 7 Longmont CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2005-07-18   
303-532 8 Longmont CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2003-12-02   
303-532 9 Longmont CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2005-07-18   
303-533 A Denver CO BRFDCOMADS0  9636 QWEST CORPORATION 656      
303-534 A Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      
303-535 A Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 0 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 1 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 2 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 3 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 4 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 5 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2001-08-12   
303-535 6 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 7 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 8 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 9 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-536 A Hudson CO HDSNCOMARS1  9636 QWEST CORPORATION 656      
303-536 0 Hudson CO HDSNCOMARS1  9636 QWEST CORPORATION 656      
303-536 1 Hudson CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-08-15   
303-536 2 Hudson CO HDSNCOMARS1  9636 QWEST CORPORATION 656      
303-536 3 Hudson CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-11-28   
303-536 4 Hudson CO HDSNCOMARS1  9636 QWEST CORPORATION 656      
303-536 5 Hudson CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2004-11-11   
303-536 6 Hudson CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2014-01-11   
303-536 7 Hudson CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-04-14   
303-536 8 Hudson CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2014-06-12   
303-536 9 Hudson CO HDSNCOMARS1  9636 QWEST CORPORATION 656      
303-537 A Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-537 0 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-537 1 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-537 2 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-537 3 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-537 4 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
303-537 5 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
303-537 6 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-537 7 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
303-537 8 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-537 9 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-538 A Denver CO NGLNCOMADS0  9636 QWEST CORPORATION 656      
303-539 A Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-540 A Denver CO DNVRCOMAXTZ  6630 USA MOBILITY WIRELESS, INC. 656      
303-541 A Denver CO BLDRCOMADS0  9636 QWEST CORPORATION 656      
303-542 A Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-543 A Denver CO TEMACOMADS0  9636 QWEST CORPORATION 656      
303-544 A Denver CO BLDRCOMADS0  9636 QWEST CORPORATION 656      
303-545 A Denver CO BLDRCOMADS0  9636 QWEST CORPORATION 656      
303-546 A Denver CO BLDRCOMADS0  9636 QWEST CORPORATION 656      
303-547 A Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-547 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2004-12-14   
303-547 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-547 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2004-12-14   
303-547 3 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-547 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2004-12-14   
303-547 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2004-12-14   
303-547 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2004-12-14   
303-547 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2004-12-14   
303-547 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2005-02-18   
303-547 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-12-14   
303-548 A Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
303-549 A Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
303-550 A Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
303-551 A Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-551 0 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-551 1 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-551 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2007-10-08   
303-551 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2007-10-08   
303-551 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2007-10-08   
303-551 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2007-10-08   
303-551 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-05-20   
303-551 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-05-20   
303-551 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-05-20   
303-551 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-05-20   
303-552 A Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-552 0 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-552 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2004-06-16   
303-552 2 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-552 3 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-552 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2005-12-12   
303-552 5 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-552 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2005-12-12   
303-552 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2005-02-18   
303-552 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2005-02-18   
303-552 9 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-553 A Denver CO DNVRCOMAXTZ  6630 USA MOBILITY WIRELESS, INC. 656      

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

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