Area code 970

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Clickable map of Colorado area codes in blue (with bordering states). Area codes CO.svg
Clickable map of Colorado area codes in blue (with bordering states).

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.

Contents

Ten-digit dialing

Area code 970 has PCS telephone numbers assigned for the central office code 988 in the rate center of Fort Collins. [3] As of October 17, 2020, 988 has been assigned by law as a three-digit code for the National Suicide Prevention Lifeline. To avoid conflicts in switching systems, the Federal Communications Commission has ordered telecommunication carriers of 83 area codes, including 970, to transition to ten-digit dialing, even when the area code is not part of an overlay plan. Alternatively, the 988 prefix may be retired in the local numbering plan. Per the timeline set by the North American Numbering Plan Administrator, permissive dialing begins on April 24, 2021 and ten-digit dialing is required starting on October 24, 2021. [4]

See also

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References

  1. "Area Codes Map, Colorado". NANPA. Retrieved 2018-04-24.
  2. NANP Information Letter 94/09-012
  3. Assignment of 988 prefix in Fort Collins, Retrieved 2021-04-05
  4. "Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)" (PDF). NANPA. 2021-01-08. Retrieved 2021-04-05.
Colorado area codes: 303/720, 719, 970
North: 307, 308
West: 435 area code 970East: 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°N106°W / 39°N 106°W / 39; -106