720 Area Code
The 720 area code shares the northeast center of the state with the 303 area code in an overlay. The Mile-High City of Denver sits in the Rocky Mountains and is home to the NFL sports team the Denver Broncos, Republic Plaza, a division of the United States Mint, the University of Denver Pioneers, and the first Chipotle Mexican Grill. Denver International Airport is the most common stop for those traveling to the state or to the Mid-West. Boulder, yet another large city in the area code 303, has a famous rock formation called the Flatirons. This city is right where the Rocky Mountains meet the Great Plains. The 303/720 calling area supports local calling except for the area of Roggen.
Area code 720 covers 25 cities in Colorado. 3 area codes are used by Colorado for approximately 4939456 residents. Its in the Mountain Time Zone.8 service providers including, Qwest Corporation, At&t Mobility, Verizon Wireless, Sprint Pcs, At&t Local, Level 3, Bandwidth.com , Xo Communications, and more service this area code through 2675 telephone exchanges.
Other Colorado Area Codes:
303 719 970
Recently Searched 720 #'s:
| Phone | City | Carrier | Type |
| 720-519-1761 | Denver | Teleport Communications ... | Landline |
| 720-887-5910 | Denver | Qwest Corporation | Landline |
| 720-210-8639 | Denver | Xo Communications Inc | Landline |
| 720-283-6480 | Denver | Qwest Corporation | Landline |