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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 a home rule city in and the county seat of Boulder County, Colorado, United States. With a population of 108,250 at the 2020 census , it is the most-populous city in the county and the 12th-most populous city in Colorado. [6]
Sep 1, 2017 · List of all area codes in Boulder, CO. Boulder, CO area code map, list, and phone lookup.
There are two lists that Wirefly provides for the area codes in Colorado. The first table below shows the most populated cities in Colorado with the area codes listed next to them. The next table shows the all the Colorado state area codes by number with the names of the city they are used in.
Get information about area code of Boulder County in Colorado. Also find all the counties located in Colorado through area codes map.
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Boulder, Colorado Area Code. Boulder, CO is officially utilizing an area code overlay in which area codes 303, 720 and 983 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
