List of Colorado area codes

The U.S. state of Colorado is served by five telephone area codes of the North American Numbering Plan (NANP).

38°59′50″N 105°32′52″W / 38.9972°N 105.5478°W / 38.9972; -105.5478 (State of Colorado)

Area code 970 Area codes 303, 720, and 983 Area code 719 Area code 785 Area code 308 Area code 307 Area code 435 Area code 928 Area code 575 Area code 505 Area code 580 Area code 620
Clickable map of Colorado area codes in blue (with bordering states). [ 1 ]