720 Area Code Information

State: CO

Largest City in Area: DENVER

Where is Area Code 720? Area code (720) is in the state of CO. Below, are the major cities in the area code (720).

Major Cities in 720

  • DENVER, CO (782,807)
  • AURORA, CO (404,733)
  • LITTLETON, CO (217,636)
  • LAKEWOOD, CO (193,207)
  • THORNTON, CO (140,324)
  • ARVADA, CO (138,919)
  • ENGLEWOOD, CO (122,672)
  • CENTENNIAL, CO (122,042)
  • WESTMINSTER, CO (119,052)
  • PARKER, CO (105,726)

Zip Codes in 720

We noticed you're blocking ads.

Our web site is powered by advertising, and your ad blocker may turn off some relevant search results. Keep supporting free contact information by turning off your ad blocker.