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List of Colorado area codes. Coordinates: 38.9972°N 105.5478°W. Clickable map of Colorado area codes in blue (with bordering states). [1] The U.S. state of Colorado is served by five telephone area codes of the North American Numbering Plan (NANP).
Area codes 303, 720 and 983 are telephone area codes in the North American Numbering Plan for the north-central portion of the U.S. state of Colorado. The numbering plan area comprises Denver and Boulder, as well as their surrounding suburbs, including Lakewood, Littleton, Longmont, Broomfield, Aurora, and Castle Rock.
Boulder is the principal city of the Boulder metropolitan statistical area, which had 330,758 residents in 2020, and is part of the Front Range Urban Corridor. Boulder is located at the base of the foothills of the Rocky Mountains , at an elevation of 5,430 feet (1,655 m) above sea level.
Our area code lookup makes it easy to find area codes in Colorado. Includes area code listings of all Colorado area codes with corresponding cities.
Below are the list Colorado state area codes by city and county listed by alphabetical order. Find Colorado area codes by city or lookup which cities belong to an area code. Colorado area codes includes 303, 719, 970.
Sep 1, 2017 · Boulder, CO Area Codes: List, Map, and Phone Lookup. Area Codes>. Colorado>. Boulder. The city of Boulder is in the state of Colorado. It has the following active area codes: 720.
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This is a list of North American telephone area codes in effect for the North American Numbering Plan (NANP). The area to which an area code is officially assigned is known as a Numbering Plan Area (NPA). An area code is part of a telephone number in the United States, Canada, and the Caribbean.
