Clickable map of Colorado area codes in blue (with bordering states).[1]
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.
See also
- List of Colorado area codes
References
- ^ "Area Codes Map, Colorado". NANPA. Retrieved 2018-04-24.
- ^ NANP Information Letter 94/09-012
External links
- "970 Area Code", List of exchanges, AreaCodeDownload.com, archived from the original on 2009-03-28
| 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 | ||