Area code 720 was first put in service June 01, 1998. Area code 720 is in USA (Colorado). 1-800-database has 2615 records on file with a phone number in the area code of (720) and 155 comments.
The carriers providing phone numbers in 720 area code are: 360networks (usa) Inc., 365 Wireless, American Messaging (am), AT&T Local, Bandwidth.com Clec, Broadvox-clec, Cbeyond Communications, Cellco Partnership DBA Verizon Wireless, Centurylink Communications LLC, Comcast Phone Of Colorado, Commnet Wireless, Dishnet Wireline, L.l.c., Eschelon Telecom Of Colorado, Global Crossing Local Services-co, Hypercube Telecom, Icg Telecom Group, Iloka DBA Newcloud Networks, Leap Wireless Intl DBA Cricket Comm, Level 3 Communications, Mcimetro Access Transmission Services LLC, Mcleodusa Telecommunications Services- Co, Metro PCS, Neutral Tandem-colorado, New Cingular Wireless PCS, Onvoy, Peerless Network Of Colorado, Qwest Corporation, Sprint Spectrum L.p., Teleport Communications America, Teliax, Telstar Communications Inc, T-mobile Usa, Tw Telecom Of Colorado LLC, Xo Colorado, Ymax Communications Corp., Zippytech Incorporated.
Counties located in area code 720 are: ADAMS, ARAPAHOE, BOULDER, BROOMFIELD, CLEAR CREEK, DENVER, DOUGLAS, JEFFERSON, PARK, WELD.
Largest city: Denver
In service since: 06/01/1998
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