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Area Code Finder
Zip Code Finder
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Colorado Area Codes
Sorted by City
Sort by Area Code
Telephone Area Codes for Major Cities in Colorado
| City |
Area Code |
| ARVADA | 303 |
| ARVADA | 720 |
| AURORA | 303 |
| AURORA | 720 |
| BOULDER | 303 |
| BOULDER | 720 |
| BRIGHTON | 303 |
| BRIGHTON | 720 |
| BROOMFIELD | 303 |
| BROOMFIELD | 720 |
| CASTLE ROCK | 303 |
| CASTLE ROCK | 720 |
| CASTLEWOOD | 303 |
| CASTLEWOOD | 720 |
| COLORADO SPRINGS | 719 |
| COLUMBINE | 303 |
| COLUMBINE | 720 |
| COMMERCE CITY | 303 |
| COMMERCE CITY | 720 |
| DENVER | 303 |
| DENVER | 720 |
| ENGLEWOOD | 303 |
| ENGLEWOOD | 720 |
| FORT COLLINS | 970 |
| GRAND JUNCTION | 970 |
| GREELEY | 970 |
| HIGHLANDS RANCH | 303 |
| HIGHLANDS RANCH | 720 |
| KEN CARYL | 303 |
| KEN CARYL | 720 |
| LAFAYETTE | 303 |
| LAFAYETTE | 720 |
| LAKEWOOD | 303 |
| LAKEWOOD | 720 |
| LITTLETON | 303 |
| LITTLETON | 720 |
| LONGMONT | 303 |
| LONGMONT | 720 |
| LOVELAND | 303 |
| LOVELAND | 720 |
| LOVELAND | 970 |
| NORTHGLENN | 303 |
| NORTHGLENN | 720 |
| PARKER | 303 |
| PARKER | 720 |
| PUEBLO | 719 |
| SECURITY-WIDEFIELD | 719 |
| SOUTHGLENN | 303 |
| SOUTHGLENN | 720 |
| THORNTON | 303 |
| THORNTON | 720 |
| WESTMINSTER | 303 |
| WESTMINSTER | 720 |
| WHEAT RIDGE | 303 |
| WHEAT RIDGE | 720 |
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