Maryland Area Codes, All Area Codes in Maryland

Maryland has area codes of 240, 301, 410, 443, 667.

Area Codes	Major Cities
240 Area Code	Major cities covered by 240 area code BowieCollege ParkCumberlandFrederickGaithersburgGreenbeltHagerstownLaurelRockville
301 Area Code	Major cities covered by 301 area code BowieBrunswickCollege ParkCumberlandDistrict HeightsFrederickFrostburgGaithersburgGlenardenGreenbeltHagerstownHyattsvilleLaurelMount RainierNew CarrolltonRockvilleSeat PleasantTakoma Park
410 Area Code	Major cities covered by 410 area code AberdeenAnnapolisBaltimoreCambridgeCrisfieldFruitlandHavre de GracePocomoke CitySalisburyTaneytownWestminster
443 Area Code	Major cities covered by 443 area code AberdeenAnnapolisBaltimoreCambridgeFruitlandHavre de GracePocomoke CitySalisburyWestminster
667 Area Code	Major cities covered by 667 area code