240 Area Code Phone Numbers

Where is Area Code 240?

The 240 area code is assigned to Maryland. Area code 240 is one of 325 three-digit telephone area codes in the USA. There are about 118,914 unique phone numbers and 165,431 individuals near the cities of Germantown,Silver Spring,Waldorf.

State:Maryland
Major City:Germantown
Timezone:Eastern
Current Time: 5:27pm

Major Cities in 240 Area Code

  • Germantown
  • Silver Spring
  • Waldorf
  • Frederick
  • Rockville
  • Bethesda
  • Gaithersburg
  • Bowie
Area Code 240 Map
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