World Time Zone Map Area Codes Lookup United States Colorado

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Colorado Area Codes

Area code lookup

Colorado is currently using 4 area codes

303	Denver, Aurora, Lakewood, Thornton, Arvada, Westminster, Boulder, Longmont, Broomfield, Castle Rock
719	Colorado Springs, Pueblo, Fountain, Canon City, Alamosa, Trinidad, Lamar, Woodland Park, La Junta, Monument
720	Denver, Aurora, Lakewood, Thornton, Arvada, Westminster, Boulder, Longmont, Broomfield, Castle Rock
970	Fort Collins, Greeley, Loveland, Grand Junction, Windsor, Evans, Montrose, Durango, Johnstown, Sterling

Find out how many area codes in Colorado including largest cities/towns covered

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