Area Code 303-800 : Area Code 303-899

VerifyPhone.com is your one-stop site for area code lookup, phone number lookup, and free phone number reviews. Following is reverse lookup detail & reviews for area code 303 8xx including 303 area code location map. Major cities such as Denver, Aurora, Westminster, Englewood, Centennial covered within area code 303 8xx are also listed on this page. More area codes, including those outside of Colorado, United States of America, are on the VerifyPhone.com homepage.

Reverse Lookup Detail for Area Code 303 8xx

Area code 303 covers part of Coloradostate, covering most of Denver, Boulder, Arapahoe, Weld, Douglas counties. It was started on Jan 01, 2000. This region follows US/Mountain + Daylight Savings timezone. Other popular area codes that belong to Colorado state include 719, 720, 970.

Verified changes in Area Code 303 8XX

Date ChangedChange Details
Jun 13, 2014Area code 303-827 was introduced on Nov 22, 2002 and subscribers are operational from Jun 13, 2014.
Jun 13, 2014Area code 303-862 was introduced on Apr 13, 2006 and subscribers are operational from Jun 13, 2014.
Jun 13, 2014Area code 303-856 was introduced on Feb 08, 2007 and subscribers are operational from Jun 13, 2014.
Jun 13, 2014Area code 303-872 was introduced on Jan 11, 2007 and subscribers are operational from Jun 13, 2014.
Jun 13, 2014Area code 303-834 was introduced on Jan 11, 2007 and subscribers are operational from Jun 13, 2014.
Jun 13, 2014Area code 303-835 was introduced on Jan 17, 2007 and subscribers are operational from Jun 13, 2014.

Area Code 303-800 - Area Code 303-899 (Covers 303 8xx xxxx phone numbers)

Area CodeCityCountyPopulationNetwork Operator
303-800DenverDenver600,158Level 3 Communications LLC - CO
303-801-3AuroraDenver600,158tw telecom of colorado llc - CO
303-801-0DenverDenver600,158MCImetro Access Transmission Services LLC
303-801-7DenverDenver600,158New Cingular Wireless PCS LLC
303-801-8WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-802-0AuroraDenver600,158tw telecom of colorado llc - CO
303-802-8DenverDenver600,158McLeodUSA Telecommunication Services Inc - CO
303-802-9DenverDenver600,158New Cingular Wireless PCS LLC
303-802-5EnglewoodDenver600,158XO Colorado LLC
303-803-0AuroraDenver600,158tw telecom of colorado llc - CO
303-803-8DenverDenver600,158New Cingular Wireless PCS LLC
303-804CentennialDenver600,158Qwest Corporation
303-805ParkerDenver600,158Qwest Corporation
303-806EnglewoodDenver600,158Qwest Corporation
303-807DenverDenver600,158New Cingular Wireless PCS LLC
303-808DenverDenver600,158New Cingular Wireless PCS LLC
303-809DenverDenver600,158New Cingular Wireless PCS LLC
303-810DenverDenver600,158New Cingular Wireless PCS LLC
303-811752,813One Call Services-Pipeline And Utility Safety
303-812DenverDenver600,158Qwest Corporation
303-813DenverDenver600,158Qwest Corporation
303-814Castle RockDenver600,158Qwest Corporation
303-815-0DenverDenver600,158Interlink Advertising Services Inc dba Forethought.Net - CO
303-815-6DenverDenver600,158New Cingular Wireless PCS LLC
303-815-9WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-816-0BaileyDouglas285,465Qwest Corporation
303-816-8DenverDouglas285,465Bandwidth.com CLEC LLC - CO
303-816-3DenverDouglas285,465Level 3 Communications LLC - CO
303-817WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-818WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-819WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-820DenverDenver600,158Qwest Corporation
303-821DenverDenver600,158USA Mobility Wireless Inc
303-822ByersArapahoe572,003Bijou Telephone Cooperative Association Inc
303-823-4DenverBoulder294,567MCImetro Access Transmission Services LLC
303-823-3EnglewoodBoulder294,567YMax Communications Corporation - CO
303-823-0LyonsBoulder294,567Qwest Corporation
303-824AuroraDenver600,158Teleport Communications America LLC - CO
303-825DenverDenver600,158Qwest Corporation
303-826DenverDenver600,158USA Mobility Wireless Inc
303-827-3DenverBoulder294,567Comcast Phone of Colorado LLC - CO
303-827-0DenverBoulder294,567ICG Telecom Group Inc - CO
303-827-9WestminsterBoulder294,567Cellco Partnership dba Verizon Wireless - CO
303-828-8EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-828-0ErieDenver600,158Qwest Corporation
303-829EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-830DenverDenver600,158Qwest Corporation
303-831DenverDenver600,158Qwest Corporation
303-832DenverDenver600,158Qwest Corporation
303-833FrederickDenver600,158Qwest Corporation
303-834-4AuroraBoulder294,567tw telecom of colorado llc - CO
303-834-7DenverBoulder294,567Bandwidth.com CLEC LLC - CO
303-834-9DenverBoulder294,567Comcast Phone of Colorado LLC - CO
303-834-6DenverBoulder294,567iLoka Inc dba NewCloud Networks - CO
303-834-3DenverBoulder294,567MCImetro Access Transmission Services LLC
303-834-5DenverBoulder294,567New Cingular Wireless PCS LLC
303-834-1EnglewoodBoulder294,567XO Colorado LLC
303-834-0WestminsterBoulder294,567Cellco Partnership dba Verizon Wireless - CO
303-835-5BrightonAdams441,603Qwest Corporation
303-835-2DenverAdams441,603Comcast Phone of Colorado LLC - CO
303-835-0DenverAdams441,603Level 3 Communications LLC - CO
303-835-8EnglewoodAdams441,603YMax Communications Corporation - CO
303-836DenverDenver600,158Communications Unlimited
303-837DenverDenver600,158Qwest Corporation
303-838BaileyDouglas285,465Qwest Corporation
303-839DenverDenver600,158Qwest Corporation
303-840ParkerDenver600,158Qwest Corporation
303-841ParkerDenver600,158Qwest Corporation
303-842-0AuroraDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-842-8DenverDenver600,158T-Mobile USA Inc
303-843CentennialDenver600,158Qwest Corporation
303-844DenverDenver600,158Qwest Corporation
303-845-0AuroraBoulder294,567Teleport Communications America LLC - CO
303-845-2WestminsterBoulder294,567Cellco Partnership dba Verizon Wireless - CO
303-846CentennialDenver600,158Qwest Corporation
303-847-0DenverDenver600,158Level 3 Communications LLC - CO
303-847-9DenverDenver600,158T-Mobile USA Inc
303-848-0DenverBoulder294,567ICG Telecom Group Inc - CO
303-848-8DenverBoulder294,567Level 3 Communications LLC - CO
303-849RoggenWeld252,825Roggen Telephone Cooperative Company
303-850CentennialDenver600,158Qwest Corporation
303-851DenverDenver600,158USA Mobility Wireless Inc
303-852DenverDenver600,158USA Mobility Wireless Inc
303-853Commerce CityDenver600,158Qwest Corporation
303-854-0DenverDenver600,158ICG Telecom Group Inc - CO
303-854-9DenverDenver600,158Level 3 Communications LLC - CO
303-854-8WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-855DenverDenver600,158USA Mobility Wireless Inc
303-856-7DenverArapahoe572,003Comcast Phone of Colorado LLC - CO
303-856-8DenverArapahoe572,003T-Mobile USA Inc
303-856-0Greenwood VillageArapahoe572,003ICG Telecom Group Inc - CO
303-857-5DenverWeld252,825Level 3 Communications LLC - CO
303-857-0Fort LuptonWeld252,825Qwest Corporation
303-858EnglewoodDenver600,158Qwest Corporation
303-859-8DenverDenver600,158New Cingular Wireless PCS LLC
303-859-0WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-860DenverDenver600,158Qwest Corporation
303-861DenverDenver600,158Qwest Corporation
303-862-0DenverDenver600,158Comcast Phone of Colorado LLC - CO
303-862-3DenverDenver600,158Eschelon Telecom of Colorado Inc - CO
303-862-2DenverDenver600,158New Cingular Wireless PCS LLC
303-863DenverDenver600,158Qwest Corporation
303-864DenverDenver600,158Qwest Corporation
303-865-8DenverDenver600,158Cbeyond Communications LLC - CO
303-866DenverDenver600,158Qwest Corporation
303-867-0DenverDenver600,158iLoka Inc dba NewCloud Networks - CO
303-868WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-869DenverDenver600,158Qwest Corporation
303-870EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-871DenverDenver600,158Qwest Corporation
303-872-1DenverArapahoe572,003Cbeyond Communications LLC - CO
303-872-0DenverArapahoe572,003Level 3 Communications LLC - CO
303-873DenverArapahoe572,003Qwest Corporation
303-874Greenwood VillageArapahoe572,003ICG Telecom Group Inc - CO
303-875DenverDenver600,158T-Mobile USA Inc
303-876DenverDenver600,158MCImetro Access Transmission Services LLC
303-877EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-878DenverDenver600,158USA Mobility Wireless Inc
303-879DenverDenver600,158USA Mobility Wireless Inc
303-880EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-881DenverDenver600,158New Cingular Wireless PCS LLC
303-882DenverDenver600,158New Cingular Wireless PCS LLC
303-883DenverDenver600,158New Cingular Wireless PCS LLC
303-884DenverDenver600,158New Cingular Wireless PCS LLC
303-885DenverDenver600,158New Cingular Wireless PCS LLC
303-886DenverDenver600,158New Cingular Wireless PCS LLC
303-887DenverDenver600,158New Cingular Wireless PCS LLC
303-888DenverDenver600,158New Cingular Wireless PCS LLC
303-889-0CentennialDenver600,158Qwest Corporation
303-890DenverDenver600,158USA Mobility Wireless Inc
303-891DenverDenver600,158USA Mobility Wireless Inc
303-892BroomfieldDenver600,158Qwest Corporation
303-893DenverDenver600,158Qwest Corporation
303-894DenverDenver600,158Qwest Corporation
303-895-0AuroraDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-896DenverDenver600,158Qwest Corporation
303-897DenverDenver600,158USA Mobility Wireless Inc
303-898DenverDenver600,158New Cingular Wireless PCS LLC
303-899DenverDenver600,158Qwest Corporation
 

Recent Free Phone Number Reviews in Area Code 303 8xx

Kathy (katv74@gmail.com) commented on 303-829-3729
This review was created at 2014-03-18T23:52
This is a prank caller. Changes his/her voice and says "This is Morgan Freeman" repeatedly. When asked how I can help him/her, the reply is "hoping my voice will make you fall asleep". It wasn"t even funny!
Recent reviews for Area Code 303-829-3
Rkymrr888 (rkymrr888@hotmail.com) commented on 303-872-7272
This review was created at 2012-07-18T21:24
This number repeatedly rings me, and if I answer they hang up.  Then when I ring back, I"m given an option to opt out, yet for weeks they continue to call every few hours.  
Recent reviews for Area Code 303-872-7

Verified phone numbers in Area Code 303

Area Code#Area Code#Area Code#Area Code#Area Code#
303 835993303 747824303 223777303 884611303 263559
303 514547303 968533303 731524303 888500303 478474
303 239456303 596447303 532446303 667434303 725424
303 907420303 928415303 489415303 588412303 931407
303 246397303 818380303 317379303 859373303 834373

Map for area code 303 8xx  

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Current Time in 303-8 Area Code

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303 Area Code

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Colorado Area Codes Directory

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303 Area Code Finder

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Colorado Area Code Lookup

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Telephone/Landline Area Codes

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303 Area Code Reviews

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Telephone Area Codes in Colorado

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External links & resources for area code 303 in Colorado

  • CitySites Pages for Colorado (Source: Official CitySites)
  • Wikipedia Article on Area Code 303 (Source: Wikipedia)
  • State Information Resources for Colorado (Source: State Information)