Glen Echo, Maryland

ZIP codes in Glen Echo

Area codes for Glen Echo

• Area code 301

  In service since 1947. Shares its area with 227 and 240. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 227

  In service since June 14, 2023. Shares its area with 240 and 301. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 240

  In service since June 1, 1997. Shares its area with 227 and 301. 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

Glen Echo is in the Eastern Time zone.

Towns near Glen Echo

• Cabin John1.5 km (0.9 mi)
• Brookmont2.1 km (1.3 mi)
• Somerset4.1 km (2.5 mi)
• Friendship Heights4.7 km (2.9 mi)
• Chevy Chase Section Three6.1 km (3.8 mi)
• Chevy Chase Section Five6.2 km (3.9 mi)
• Chevy Chase6.2 km (3.9 mi)
• Martin's Additions6.5 km (4.0 mi)