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303 Area Code

About Area Code 303

State: Colorado
Major City: Denver
Timezone: Mountain (1:30pm)
Short URL: allareacodes.com/303
Download: Download this data

Area Code 303 Map

  • Arvada, CO
  • Aurora, CO
  • Boulder, CO
  • Brighton, CO
  • Broomfield, CO
  • Castle Rock, CO
  • Castlewood, CO
  • Columbine, CO
  • Commerce City, CO
  • Denver, CO
  • Englewood, CO
  • Highlands Ranch, CO
  • Ken Caryl, CO
  • Lafayette, CO
  • Lakewood, CO
  • Littleton, CO
  • Longmont, CO
  • Loveland, CO
  • Northglenn, CO
  • Parker, CO
  • Southglenn, CO
  • Thornton, CO
  • Westminster, CO
  • Wheat Ridge, CO

More About Area Code 303

Area code 303 is one of the original 86 area codes created by AT&T and the Bell System in 1947. It originally served the entire state of Colorado. In 1995, area code 303 was split, and some of the phone numbers had to be updated to area code 970 on that date. In 1998, area code 720 was created as an overlay to area code 303. Currently, the largest city it serves is Denver, CO, and it overlaps coverage areas with area code 720.

Overview of Active Prefixes

Assigned to Carrier

Usage

Carriers

Active Phone Number Prefixes

Prefix
Usage
Primary City
Carrier
Introduced
Landline
Denver
Teleport Communications America
Introduced 01/25/1998
Wireless
Denver
Usa Mobility Wireless
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 09/11/1994
Wireless
Denver
American Messaging (am)
Introduced 01/25/1998
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Wireless
Denver
Usa Mobility Wireless
Introduced 04/15/1996
Wireless
Denver
Usa Mobility Wireless
Introduced 01/10/1996
Wireless
Denver
Usa Mobility Wireless
Introduced 02/11/1995
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 10/31/2001
Wireless
Denver
Sprint Spectrum L.p.
Introduced 04/01/1997
Wireless
Denver
Contact Paging Of Colorado
Introduced 02/11/1995
Wireless
Denver
Usa Mobility Wireless
Introduced 04/15/1996
Landline
Aurora
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Golden
Qwest Corporation
Introduced 04/15/1996
Landline
Golden
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Brighton
Mcimetro Access Transmission Services LLC
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Denver
Global Crossing Local Services-co
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Denver
Global Crossing Local Services-co
Introduced 01/25/1998
Landline
Denver
Icg Telecom Group
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Icg Telecom Group
Introduced 01/25/1998
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/11/1997
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 04/01/1997
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/11/1997
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 04/01/1997
Wireless
Denver
N.e. Colorado Cellular
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Wireless
Denver
Sprint Spectrum L.p.
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Wireless
Denver
New Cingular Wireless PCS
Introduced 04/01/1997
Wireless
Denver
New Cingular Wireless PCS
Introduced 04/01/1997
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Wireless
Denver
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
American Messaging (am)
Introduced 10/11/1997
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
AT&T Local
Introduced 02/27/1999
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 06/30/2001
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Golden
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Golden
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Convergent Communications
Introduced 04/01/1997
Landline
Golden
Qwest Corporation
Introduced 02/04/1994
Landline
Golden
Qwest Corporation
Introduced 02/04/1994
Landline
Golden
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Aurora
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Comcast Phone Of Colorado
Introduced 10/13/1999
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 11/20/1998
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Xo Colorado
Introduced 11/20/1998
Wireless
Fort Lupton
New Cingular Wireless PCS
Introduced 11/18/2004
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Aurora
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 05/18/1998
Landline
Denver
Qwest Corporation
Introduced 08/14/1998
Landline
Denver
Global Crossing Local Services-co
Introduced 01/25/1998
Wireless
Denver
Contact Paging Of Colorado
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 02/11/1995
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Aurora
Qwest Corporation
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 01/11/1997
Wireless
Denver
Elbert County Wireless
Introduced 08/12/2004
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 04/01/1997
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Aurora
Qwest Corporation
Introduced 01/11/1997
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
360networks (usa) Inc.
Introduced 03/09/2006
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
T-mobile Usa
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 04/01/1997
Landline
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Cbeyond Communications
Introduced 12/15/2003
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 01/25/1998
Landline
Littleton
Qwest Corporation
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 10/15/1996
Landline
Denver
New Cingular Wireless PCS
Introduced 10/13/1999
Landline
Keenesburg
360networks (usa) Inc.
Introduced 11/08/2006
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Denver
Comcast Phone Of Colorado
Introduced 10/13/1999
Landline
Denver
Teleport Communications America
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/25/1998
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 04/01/1997
Wireless
Denver
T-mobile Usa
Introduced 10/15/1996
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 10/15/1996
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 07/01/1996
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Golden
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 01/25/1998
Landline
Denver
Icg Telecom Group
Introduced 01/25/1998
Landline
Denver
Mcleodusa Telecommunications Services- Co
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Contact Paging Of Colorado
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Global Crossing Local Services-co
Introduced 01/25/1998
Landline
Denver
Live Wire Networks
Introduced 06/01/2005
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 11/20/1998
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Icg Telecom Group
Introduced 07/06/1997
Landline
Denver
Cbeyond Communications
Introduced 05/18/1998
Landline
Denver
New Cingular Wireless PCS
Introduced 04/01/1997
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Landline
Denver
Qwest Corporation
Introduced 07/04/1995
Landline
Denver
Icg Telecom Group
Introduced 02/11/1995
Landline
Denver
Qwest Corporation
Introduced 02/11/1995
Landline
Denver
Global Crossing Local Services-co
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 07/04/1995
Landline
Aurora
Icg Telecom Group
Introduced 04/01/1997
Wireless
Denver
Sprint Spectrum L.p.
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Sprint Spectrum L.p.
Introduced 01/25/1998
Wireless
Denver
Sprint Spectrum L.p.
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Sprint Spectrum L.p.
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Cbeyond Communications
Introduced 05/24/2001
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Littleton
Qwest Corporation
Introduced 02/04/1994
Landline
Littleton
Qwest Corporation
Introduced 01/11/1997
Wireless
Denver
Sprint Spectrum L.p.
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Brighton
Teleport Communications America
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Denver
Global Crossing Local Services-co
Introduced 01/25/1998
Landline
Denver
Icg Telecom Group
Introduced 01/25/1998
Landline
Denver
Teleport Communications America
Introduced 01/25/1998
Landline
Longmont
Qwest Corporation
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 10/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 04/01/1997
Wireless
Denver
Usa Mobility Wireless
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/25/1998
Landline
Denver
Xo Colorado
Introduced 04/08/2004
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Brighton
Comcast Phone Of Colorado
Introduced 04/22/2005
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Hudson
Level 3 Communications
Introduced 01/04/2005
Landline
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/26/2006
Wireless
Fort Lupton
Cellco Partnership DBA Verizon Wireless
Introduced 12/13/2005
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Wireless
Denver
Sprint Spectrum L.p.
Introduced 11/09/2012
Wireless
Fort Lupton
New Cingular Wireless PCS
Introduced 09/13/2001
Wireless
Denver
Sprint Spectrum L.p.
Introduced 04/15/1996
Wireless
Denver
American Messaging (am)
Introduced 01/10/1996
Wireless
Denver
American Messaging (am)
Introduced 01/10/1996
Wireless
Denver
American Messaging (am)
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/15/2002
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Landline
Denver
360networks (usa) Inc.
Introduced 11/14/2011
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Wireless
Denver
New Cingular Wireless PCS
Introduced 07/04/1995
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Wireless
Denver
Sprint Spectrum L.p.
Introduced 10/15/1996
Wireless
Denver
Sprint Spectrum L.p.
Introduced 10/15/1996
Wireless
Denver
Sprint Spectrum L.p.
Introduced 04/01/1997
Wireless
Denver
T-mobile Usa
Introduced 10/15/1996
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Wireless
Denver
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
Golden
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Wireless
Denver
American Messaging (am)
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Longmont
Mcleodusa Telecommunications Services- Co
Introduced 10/13/1999
Landline
Denver
Qwest Corporation
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Fort Lupton
Cbeyond Communications
Introduced 10/31/2001
Landline
Hudson
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Teleport Communications America
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Xo Colorado
Introduced 11/20/1998
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Global Crossing Local Services-co
Introduced 01/25/1998
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 07/01/1996
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Louisville
Mcimetro Access Transmission Services LLC
Introduced 02/04/1994
Landline
Denver
Global Crossing Local Services-co
Introduced 08/14/1998
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Global Crossing Local Services-co
Introduced 08/14/1998
Landline
Brighton
Global Crossing Local Services-co
Introduced 08/14/1998
Wireless
Denver
American Messaging (am)
Introduced 11/20/1998
Wireless
Denver
Usa Mobility Wireless
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Global Crossing Local Services-co
Introduced 01/25/1998
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Wireless
Denver
T-mobile Usa
Introduced 10/15/1996
Landline
Denver
Cbeyond Communications
Introduced 01/11/1997
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Landline
Idaho Springs
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Eschelon Telecom Of Colorado
Introduced 06/13/2000
Landline
Keenesburg
Level 3 Communications
Introduced 09/12/2006
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 07/01/1996
Wireless
Denver
American Messaging (am)
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
4dvision
Introduced 09/18/2007
Wireless
Denver
Sprint Spectrum L.p.
Introduced 10/15/1996
Wireless
Denver
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 07/06/1997
Wireless
Denver
Sprint Spectrum L.p.
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 01/25/1998
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Sprint Spectrum L.p.
Introduced 01/11/1997
Landline
Denver
Eschelon Telecom Of Colorado
Introduced 06/13/2000
Wireless
Denver
Sprint Spectrum L.p.
Introduced 09/11/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 07/01/1996
Landline
Denver
Teleport Communications America
Introduced 02/27/1999
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/11/1995
Landline
Denver
Qwest Corporation
Introduced 07/04/1995
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Landline
Denver
Qwest Corporation
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 07/04/1995
Landline
Denver
Qwest Corporation
Introduced 02/11/1995
Landline
Denver
Qwest Corporation
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 02/11/1995
Wireless
Denver
Usa Mobility Wireless
Introduced 09/11/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 02/11/1995
Wireless
Denver
Usa Mobility Wireless
Introduced 07/04/1995
Wireless
Denver
Usa Mobility Wireless
Introduced 07/04/1995
Landline
Aurora
Qwest Corporation
Introduced 02/11/1995
Landline
Denver
Qwest Corporation
Introduced 02/11/1995
Wireless
Denver
Usa Mobility Wireless
Introduced 07/04/1995
Landline
Denver
Qwest Corporation
Introduced 07/04/1995
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/11/1995
Wireless
Denver
New Cingular Wireless PCS
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Strasburg
Strasburg Telephone Co.
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 07/01/1996
Landline
Denver
Teleport Communications America
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Brighton
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
New Cingular Wireless PCS
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Sprint Spectrum L.p.
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Bennett
Eastern Slope Rural Telephone Association
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Sedalia
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Longmont
Qwest Corporation
Introduced 02/04/1994
Landline
Longmont
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Brighton
Qwest Corporation
Introduced 02/04/1994
Landline
Brighton
Qwest Corporation
Introduced 07/01/1996
Wireless
Denver
Big River Telephone Company - MO
Introduced 02/19/2009
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Qwest Corporation
Introduced 09/11/1994
Landline
Brighton
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
T-mobile Usa
Introduced 10/15/1996
Wireless
Denver
T-mobile Usa
Introduced 10/15/1996
Wireless
Denver
T-mobile Usa
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 07/01/1996
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 10/15/1996
Landline
Longmont
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Longmont
Qwest Corporation
Introduced 02/04/1994
Landline
Littleton
Qwest Corporation
Introduced 02/04/1994
Landline
Longmont
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 07/01/1996
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Communications Unlimited
Introduced 02/11/1995
Landline
Longmont
Qwest Corporation
Introduced 07/04/1995
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Landline
Denver
Qwest Corporation
Introduced 02/11/1995
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Wireless
Longmont
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Wireless
Fort Lupton
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Landline
Denver
Qwest Corporation
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 07/04/1995
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Wireless
Fort Lupton
New Cingular Wireless PCS
Introduced 02/11/1995
Wireless
Fort Lupton
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Landline
Deer Trail
Ymax Communications Corp.
Introduced 11/16/2006
Wireless
Fort Lupton
Cellco Partnership DBA Verizon Wireless
Introduced 06/13/2008
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 01/11/1997
Landline
Aurora
Qwest Corporation
Introduced 04/01/1997
Wireless
Denver
Sprint Spectrum L.p.
Introduced 04/01/1997
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Level 3 Communications
Introduced 04/01/1997
Landline
Keenesburg
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Teleport Communications America
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Wireless
Longmont
Cellco Partnership DBA Verizon Wireless
Introduced 07/04/1995
Landline
Allenspark
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 01/11/1997
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Aurora
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Contact Paging Of Colorado
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Deer Trail
Bijou Telephone Cooperative Association
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Longmont
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Longmont
Qwest Corporation
Introduced 07/01/1996
Wireless
Longmont
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Longmont
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Englewood
Xo Colorado
Introduced 11/20/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Littleton
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Level 3 Communications
Introduced 03/03/2001
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 10/11/1997
Landline
Denver
Tw Telecom Of Colorado LLC
Introduced 01/10/1996
Landline
Denver
Tw Telecom Of Colorado LLC
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/11/1995
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/11/1995
Wireless
Denver
New Cingular Wireless PCS
Introduced 09/11/1994
Wireless
Denver
New Cingular Wireless PCS
Introduced 01/10/1996
Landline
Denver
Qwest Corporation
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Landline
Denver
Interlink Adv Svc D/b/a Forethought.net
Introduced 02/03/2005
Landline
Denver
Qwest Corporation
Introduced 04/15/1996
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Byers
Bijou Telephone Cooperative Association
Introduced 02/04/1994
Landline
Lyons
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 01/11/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Longmont
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Longmont
Cellco Partnership DBA Verizon Wireless
Introduced 09/27/2006
Landline
Brighton
Level 3 Communications
Introduced 01/11/1997
Wireless
Denver
Communications Unlimited
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Longmont
Teleport Communications America
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 01/11/1997
Landline
Denver
Level 3 Communications
Introduced 01/11/1997
Landline
Longmont
Icg Telecom Group
Introduced 04/01/1997
Landline
Roggen
Roggen Telephone Cooperative Co.
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Englewood
Icg Telecom Group
Introduced 04/01/1997
Landline
Fort Lupton
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Comcast Phone Of Colorado
Introduced 06/04/2005
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Iloka DBA Newcloud Networks
Introduced 11/04/2005
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Level 3 Communications
Introduced 11/20/1998
Landline
Aurora
Qwest Corporation
Introduced 01/11/1997
Landline
Englewood
Icg Telecom Group
Introduced 04/01/1997
Wireless
Denver
T-mobile Usa
Introduced 10/15/1996
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 10/15/1996
Wireless
Denver
Usa Mobility Wireless
Introduced 10/15/1996
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Denver
New Cingular Wireless PCS
Introduced 07/01/1996
Wireless
Denver
New Cingular Wireless PCS
Introduced 10/15/1996
Wireless
Denver
New Cingular Wireless PCS
Introduced 01/11/1997
Wireless
Denver
New Cingular Wireless PCS
Introduced 10/15/1996
Wireless
Denver
New Cingular Wireless PCS
Introduced 04/12/2001
Wireless
Denver
New Cingular Wireless PCS
Introduced 04/12/2001
Wireless
Denver
New Cingular Wireless PCS
Introduced 04/12/2001
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Usa Mobility Wireless
Introduced 01/11/1997
Wireless
Denver
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Idaho Springs
Level 3 Communications
Introduced 01/10/2007
Wireless
Denver
Sprint Spectrum L.p.
Introduced 07/06/1997
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 07/01/1996
Landline
Denver
Qwest Corporation
Introduced 02/11/1995
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 07/04/1995
Landline
Denver
Qwest Corporation
Introduced 09/11/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Icg Telecom Group
Introduced 05/18/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 11/20/1998
Landline
Denver
Qwest Corporation
Introduced 04/01/1997
Landline
Denver
Teleport Communications America
Introduced 04/01/1997
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/25/1998
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
T-mobile Usa
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Denver
Teleport Communications America
Introduced 01/11/1997
Unknown
Nextwave Telecom, Inc DBA Nextwave Wireless
Introduced 04/01/1997
Wireless
Denver
Sprint Spectrum L.p.
Introduced 04/01/1997
Landline
Denver
Comcast Phone Of Colorado
Introduced 01/25/1998
Wireless
Denver
Sprint Spectrum L.p.
Introduced 01/11/1997
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Wireless
Denver
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
Denver
Level 3 Communications
Introduced 02/27/1999
Landline
Denver
Level 3 Communications
Introduced 11/20/1998
Landline
Denver
Level 3 Communications
Introduced 02/27/1999
Landline
Denver
Level 3 Communications
Introduced 02/27/1999
Landline
Denver
Global Crossing Local Services-co
Introduced 08/14/1998
Wireless
Fort Lupton
New Cingular Wireless PCS
Introduced 08/14/1998
Landline
Denver
Global Crossing Local Services-co
Introduced 08/14/1998
Wireless
Denver
T-mobile Usa
Introduced 08/20/2000
Wireless
Denver
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
Denver
Cbeyond Communications
Introduced 07/14/2005
Landline
Denver
Icg Telecom Group
Introduced 04/01/1997
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 01/11/1997
Landline
Denver
Mcimetro Access Transmission Services LLC
Introduced 01/25/1998
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Global Crossing Local Services-co
Introduced 08/14/1998
Landline
Denver
Qwest Corporation
Introduced 01/10/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Denver
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Golden
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 10/15/1996
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Landline
Denver
Qwest Corporation
Introduced 02/04/1994
Wireless
Fort Lupton
Sprint Spectrum L.p.
Introduced 05/16/2006
Landline
Denver
Xo Colorado
Introduced 08/14/1998
Landline
Denver
Qwest Corporation
Introduced 08/14/1998
Landline
Denver
Neutral Tandem-colorado
Introduced 03/27/2007
Wireless
Denver
Sprint Spectrum L.p.
Introduced 08/14/1998
Wireless
Denver
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
Denver
Eschelon Telecom Of Colorado
Introduced 08/20/2000
Landline
Denver
Pac - West Telecomm
Introduced 12/06/2005
Landline
Denver
Qwest Corporation
Introduced 11/20/1998
Landline
Denver
Comcast Phone Of Colorado
Introduced 08/24/2007

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