Middletown, Maryland

ZIP codes in Middletown

Area codes for Middletown

• 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

Middletown is in the Eastern Time zone.

Towns near Middletown

• Braddock Heights4.5 km (2.8 mi)
• Jefferson8.5 km (5.3 mi)
• Burkittsville8.6 km (5.3 mi)
• Rohrersville9.3 km (5.8 mi)
• Myersville9.6 km (6.0 mi)
• Gapland10.3 km (6.4 mi)
• Trego-Rohrersville Station10.8 km (6.7 mi)
• Brownsville11.1 km (6.9 mi)