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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
303-554 A Denver CO TEMACOMADS0  9636 QWEST CORPORATION 656      
303-556 A Denver CO DNVRCOMADS0  9636 QWEST CORPORATION 656      
303-557 A Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-557 0 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-557 1 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-557 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-557 3 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-557 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-557 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-557 6 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-557 7 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-557 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2005-08-12   
303-557 9 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-558 A Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-558 0 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2009-09-11   
303-558 1 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2009-01-10   
303-558 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-558 3 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-558 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-558 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-558 6 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-558 7 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-558 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2001-07-25   
303-558 9 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-559 A Denver CO ENWDCOVF0MD  9748 AMERICAN MESSAGING SERVICES, LLC 656      
303-560 A Denver CO DNVRCOMAXTZ  6630 USA MOBILITY WIRELESS, INC. 656      
303-561 A Denver CO DNVRCONODS0  9636 QWEST CORPORATION 656      
303-562 A Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-562 0 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-562 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-562 2 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-562 3 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-562 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2005-01-10   
303-562 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2005-01-10   
303-562 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2005-01-17   
303-562 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2005-01-10   
303-562 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2006-07-18   
303-562 9 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 0 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 3 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 6 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 7 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 8 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-563 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2006-07-31   
303-564 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
303-565 A Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-565 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2006-11-05   
303-565 1 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-01-26   
303-565 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-01-26   
303-565 3 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-07-08   
303-565 4 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-04-25   
303-565 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-04-25   
303-565 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2006-11-09   
303-565 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2006-11-16   
303-565 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-07-08   
303-565 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2006-11-16   
303-566 A Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-566 0 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-566 1 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-566 2 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-566 3 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-566 4 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-566 5 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-566 6 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-566 7 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-566 8 Denver CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2007-11-16   
303-566 9 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
303-567 A Denver CO IDSPCOMADS0  9636 QWEST CORPORATION 656      
303-567 0 Denver CO IDSPCOMADS0  9636 QWEST CORPORATION 656      
303-567 1 Denver CO IDSPCOMADS0  9636 QWEST CORPORATION 656      
303-567 2 Denver CO IDSPCOMADS0  9636 QWEST CORPORATION 656      
303-567 3 Denver CO IDSPCOMADS0  9636 QWEST CORPORATION 656      
303-567 4 Denver CO IDSPCOMADS0  9636 QWEST CORPORATION 656      
303-567 5 Denver CO DNVRCOMBDS0  9636 QWEST CORPORATION 656      
303-567 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-07-08   
303-567 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-07-08   
303-567 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-07-08   
303-567 9 Denver CO IDSPCOMADS0  9636 QWEST CORPORATION 656      
303-568 A Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 0 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 1 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 2 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 3 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 4 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 5 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 6 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 7 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 8 Denver CO AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
303-568 9 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
303-569 A Georgetown CO GRTWCOMARS1  9636 QWEST CORPORATION 656      
303-569 0 Georgetown CO GRTWCOMARS1  9636 QWEST CORPORATION 656      
303-569 1 Georgetown CO GRTWCOMARS1  9636 QWEST CORPORATION 656      
303-569 2 Georgetown CO GRTWCOMARS1  9636 QWEST CORPORATION 656      
303-569 3 Georgetown CO GRTWCOMARS1  9636 QWEST CORPORATION 656      
303-569 4 Georgetown CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2011-03-29   

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Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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