Area code 240 is an area code that covers Western Maryland, specifically the part of Maryland that is included in the Washington DC metro area. Area code 240 overlays the area code of 301.
Counties that Use 240 Area Code
Allegany CountyAnne Arundel CountyCharles CountyFrederick CountyGarrett CountyHoward CountyMontgomery CountyPrince Georges CountySaint Marys CountyWashington County
Major Cities that Use 240 Area Code
All Cities & Towns that Use 240 Area Code
AshtonBethesdaBrandywineChevy ChaseCumberlandEmmitsburgFrederickGaithersburgGrantsvilleHagerstownHancockHughesvilleHyattsvilleIjamsvilleIndian HeadKensingtonLaurelLeonardtownLexington ParkMechanicsvilleMiddletownMount AiryMyersvilleNanjemoyOaklandOdentonPoolesvilleRidgeRockvilleSilver SpringSmithsburgTemple HillsUpper MarlboroWaldorfWilliamsport
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Where is 240 area code?
The following map shows the coverage of 240 area code. The coverage area is shown in green.