Area code 970

Area code 970 is a telephone area code in the North American Numbering Plan (NANP) serving most of the western and northern parts of Colorado. The numbering plan area includes Aspen, Breckenridge, Durango, Estes Park, Fort Collins, Glenwood Springs, Grand Junction, Greeley, Loveland, Silverthorne, Steamboat Springs, and Vail. It was established in an area code split from area code 303 on April 2, 1995, in which only the Denver metropolitan area retained area code 303.[2] The split did not affect local calls; they remained local with seven-digit dialing, even when the destination had received the new area code.

Area code 970Area codes 303 and 720Area code 719Area code 785Area code 308Area code 307Area code 435Area code 928Area code 575Area code 505Area code 580Area code 620
Clickable map of Colorado area codes in blue (with bordering states).[1]

See alsoEdit


  1. ^ "Area Codes Map, Colorado". NANPA. Retrieved 2018-04-24.
  2. ^ NANP Information Letter 94/09-012

External linksEdit

Colorado area codes: 303/720, 719, 970
North: 307, 308
West: 435 area code 970 East: 303/720, 719, 785
South: 303/720, 505, 575, 719
Kansas area codes: 316, 620, 785, 913
Nebraska area codes: 308, 402/531
New Mexico area codes: 505, 575
Utah area codes: 385/801, 435
Wyoming area codes: 307

Coordinates: 39°N 106°W / 39°N 106°W / 39; -106