Area Code 720-800 : Area Code 720-898 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 720 8xx including 720 area code location map. Major cities such as Denver, Centennial, Englewood, Westminster, Aurora covered within area code 720 8xx are also listed on this page. More area codes, including those outside of Colorado, United States of America, are on the homepage.

Reverse Lookup Detail for Area Code 720 8xx

Area code 720 covers part of Coloradostate, covering most of Denver, Arapahoe, Boulder 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 303, 719, 970.

Verified changes in Area Code 720 8XX

Date ChangedChange Details
Jun 13, 2014Area code 303 subscribers are now overlayed with area code 720. Subscriber area code 720-863 was assigned on Sep 26, 2011 and is operational from Jun 13, 2014.
Apr 04, 2014Area code 303 subscribers are now overlayed with area code 720. Subscriber area code 720-808 was assigned on Mar 25, 2014 and is operational from Apr 04, 2014.
Apr 03, 2014Area code 303 subscribers are now overlayed with area code 720. Subscriber area code 720-897 is operational from Apr 03, 2014.
Dec 06, 2013Area code 303 subscribers are now overlayed with area code 720. Subscriber area code 720-800 was assigned on Nov 25, 2013 and is operational from Dec 06, 2013.
Apr 05, 2013Area code 303 subscribers are now overlayed with area code 720. Subscriber area code 720-836 is operational from Apr 05, 2013.
Apr 03, 2013Area code 303 subscribers are now overlayed with area code 720. Subscriber area code 720-891 is operational from Apr 03, 2013.

Area Code 720-800 - Area Code 720-898 (Covers 720 8xx xxxx phone numbers)

Area CodeCityCountyPopulationNetwork Operator
720-800-5DenverArapahoe572,003New Cingular Wireless PCS LLC
720-800-0HendersonArapahoe572,003360networks (USA) Inc - CO
720-808-0DenverArapahoe572, CLEC LLC - CO
720-808-5DenverArapahoe572,003MCImetro Access Transmission Services LLC
720-808-8DenverArapahoe572,003MetroPCS Inc
720-808-7DenverArapahoe572,003New Cingular Wireless PCS LLC
720-808-4DenverArapahoe572,003T-Mobile USA Inc
720-808-9EnglewoodArapahoe572,003YMax Communications Corporation - CO
720-810-8DenverArapahoe572,003T-Mobile USA Inc
720-810-0WestminsterArapahoe572,003Cellco Partnership dba Verizon Wireless - CO
720-81192,813One Call Services-Pipeline And Utility Safety
720-833-5DenverDenver600,158Cbeyond Communications LLC - CO
720-833-3DenverDenver600,158McLeodUSA Telecommunication Services Inc - CO
720-833-0EnglewoodDenver600,158Qwest Corporation
720-833-7HendersonDenver600,158360networks (USA) Inc - CO
720-833-8WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
720-834AuroraDenver600,158Teleport Communications America LLC - CO
720-836-0DenverDenver600,158ICG Telecom Group Inc - CO
720-836-1DenverDenver600,158Level 3 Communications LLC - CO
720-836-7EnglewoodDenver600,158XO Colorado LLC
720-837-0CentennialDenver600,158Sprint Spectrum LP
720-837-2DenverDenver600, CLEC LLC - CO
720-838-0CentennialDenver600,158Sprint Spectrum LP
720-838-2DenverDenver600,158Eschelon Telecom of Colorado Inc - CO
720-838-1WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
720-839-0CentennialDenver600,158Sprint Spectrum LP
720-839-2DenverDenver600,158New Cingular Wireless PCS LLC
720-840-0CentennialDenver600,158Sprint Spectrum LP
720-840-2DenverDenver600,158T-Mobile USA Inc
720-841-0CentennialDenver600,158Sprint Spectrum LP
720-841-0DenverDenver600,158New Cingular Wireless PCS LLC
720-842-3DenverDenver600,158iLoka Inc dba NewCloud Networks - CO
720-842-9DenverDenver600,158Leap Wireless International Inc dba Cricket Communications Inc
720-842-7HendersonDenver600,158360networks (USA) Inc - CO
720-842-8LittletonDenver600,158Qwest Corporation
720-842-0ParkerDenver600,158Qwest Corporation
720-847-0AuroraArapahoe572,003Qwest Corporation
720-848AuroraArapahoe572,003Qwest Corporation
720-849CentennialDenver600,158Sprint Spectrum LP
720-851ParkerDenver600,158Qwest Corporation
720-852EnglewoodDenver600,158Qwest Corporation
720-854-7BoulderDenver600,158Qwest Corporation
720-854-0DenverDenver600,158Qwest Corporation
720-854-9EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
720-855-5DenverDenver600,158Leap Wireless International Inc dba Cricket Communications Inc
720-855-0DenverDenver600,158Qwest Corporation
720-857AuroraArapahoe572,003Qwest Corporation
720-858AuroraArapahoe572,003Qwest Corporation
720-859AuroraArapahoe572,003Qwest Corporation
720-862-3DenverArapahoe572,003Level 3 Communications LLC - CO
720-862-9DenverArapahoe572,003T-Mobile USA Inc
720-862-0EnglewoodArapahoe572,003XO Colorado LLC
720-863-8DenverArapahoe572,003Comcast Phone of Colorado LLC - CO
720-863-7DenverArapahoe572,003Level 3 Communications LLC - CO
720-863-0EnglewoodArapahoe572,003XO Colorado LLC
720-863-9EnglewoodArapahoe572,003YMax Communications Corporation - CO
720-864-9DenverBoulder294,567Cbeyond Communications LLC - CO
720-864-4DenverBoulder294,567MCImetro Access Transmission Services LLC
720-864-1DenverBoulder294,567Pac-West Telecomm Inc - CO
720-864-0LongmontBoulder294,567Qwest Corporation
720-865DenverDenver600,158ICG Telecom Group Inc - CO
720-867DenverDenver600,158Great West Services Ltd - CO
720-870DenverDenver600,158Qwest Corporation
720-872CentennialDenver600,158Qwest Corporation
720-872NorthglennDenver600,158Qwest Corporation
720-873EnglewoodDenver600,158Qwest Corporation
720-874EnglewoodDenver600,158Qwest Corporation
720-875EnglewoodDenver600,158Qwest Corporation
720-876-0DenverDenver600,158Qwest Corporation
720-876-8DenverDenver600,158T-Mobile USA Inc
720-877-0DenverDenver600,158ICG Telecom Group Inc - CO
720-877-8DenverDenver600,158Leap Wireless International Inc dba Cricket Communications Inc
720-877-1DenverDenver600,158New Cingular Wireless PCS LLC
720-878-0DenverDenver600,158ICG Telecom Group Inc - CO
720-878-8DenverDenver600,158New Cingular Wireless PCS LLC
720-879-0DenverDenver600,158ICG Telecom Group Inc - CO
720-879-8EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
720-880-7DenverDenver600,158Cbeyond Communications LLC - CO
720-880-0DenverDenver600,158ICG Telecom Group Inc - CO
720-880-5EnglewoodDenver600,158XO Colorado LLC
720-880-8WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
720-881-8DenverDenver600,158Cbeyond Communications LLC - CO
720-881-0DenverDenver600,158ICG Telecom Group Inc - CO
720-881-1EnglewoodDenver600,158YMax Communications Corporation - CO
720-882-0DenverDenver600,158ICG Telecom Group Inc - CO
720-882-8DenverDenver600,158Leap Wireless International Inc dba Cricket Communications Inc
720-883-0DenverDenver600,158ICG Telecom Group Inc - CO
720-883-7DenverDenver600,158New Cingular Wireless PCS LLC
720-883-8WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
720-884-0DenverDenver600,158Qwest Corporation
720-884-9EnglewoodDenver600,158XO Colorado LLC
720-884-7WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
720-885-9DenverDenver600, CLEC LLC - CO
720-885-0DenverDenver600,158Leap Wireless International Inc dba Cricket Communications Inc
720-886DenverDenver600,158Qwest Corporation
720-887BroomfieldDenver600,158Qwest Corporation
720-888DenverDenver600,158Level 3 Communications LLC - CO
720-889EnglewoodDenver600,158XO Colorado LLC
720-890LafayetteDenver600,158Qwest Corporation
720-891-0DenverDenver600,158Level 3 Communications LLC - CO
720-891-9DenverDenver600,158New Cingular Wireless PCS LLC
720-895EnglewoodDenver600,158Qwest Corporation
720-897-0DenverDenver600,158Global Crossing Local Services Inc - CO
720-898ArvadaDenver600,158Qwest Corporation

Recent Free Phone Number Reviews in Area Code 720 8xx

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Verified phone numbers in Area Code 720

Area Code#Area Code#Area Code#Area Code#Area Code#
720 234527720 495452720 275443720 201436720 309408
720 838395720 628387720 620378720 280376720 404375
720 298374720 251373720 560369720 621365720 327359
720 252348720 329348720 840343720 882338720 296331
720 272329720 480325720 690323720 297323720 434320

Map for area code 720 8xx  

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Current Time in 720-8 Area Code

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720 Area Code

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Colorado Area Codes Directory provides a free area codes directory with detailed information on the various USA area codes, area codes listing, and other area codes phone details. also lists international area codes within the North American Numbering Plan. And you can verify owners of phone numbers using the reverse number lookup service by entering a 10 digit phone number in the top most text box.

720 Area Code Finder

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720 Area Code Reviews provides local reviews for phone numbers and aggregates results per area code. It shows you the area code location covered by each area code; for example, the LA area code reveiws covers local business phone numbers area in Los Angeles. This page details area code 720-8. All USA states area codes may be found using

Telephone Area Codes in Colorado

The telephone area code prefixes local phone numbers & is not required to be dialed. For area codes by city, search Area codes telephone differ from region to region, and in some places the area code must be dialed even when calling locally within that region. Find out more with area code decoder.

External links & resources for area code 720 in Colorado

  • CitySites Pages for Colorado (Source: Official CitySites)
  • Wikipedia Article on Area Code 720 (Source: Wikipedia)
  • State Information Resources for Colorado (Source: State Information)