Colorado

Area code 720

Area code 720 covers Denver and Colorado, plus 9 other places. Got a call from a 720 number? Look it up below.

Cities in area code 720

• Denver, CO
• Aurora, CO
• Littleton, CO
• Highlands Ranch, CO
• Boulder, CO
• Parker, CO
• Longmont, CO
• Brighton, CO
• Castle Rock, CO
• Broomfield, CO

Recently reported 720 numbers

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