Lone Tree, Colorado

ZIP codes in Lone Tree

Area codes for Lone Tree

• Area code 303

  In service since 1947. Shares its area with 720 and 983. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 720

  In service since June 1, 1998. Shares its area with 303 and 983. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 983

  In service since June 17, 2022. Shares its area with 303 and 720. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Lone Tree is in the Mountain Time zone.

Towns near Lone Tree

• Acres Green0.9 km (0.6 mi)
• Meridian2.9 km (1.8 mi)
• Inverness3.2 km (2.0 mi)
• Centennial4.8 km (3.0 mi)
• Dove Valley5.3 km (3.3 mi)
• Grand View Estates5.5 km (3.4 mi)
• Sierra Ridge6.5 km (4.0 mi)
• Cherry Creek6.7 km (4.2 mi)