720 Area Code Phone Directory

Information for Area Code 720

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