About Maryland Area Code 240
The
240 area code includes Maryland cities Aspen Hill, Bethesda, Bowie, Brunswick, College Park, Cumberland, Frederick, Gaithersburg, Golden Beach, Greenbelt, Hagerstown, Hyattsville, Laurel, Lexington Park, Montgomery Village, New Carrollton, Potomac, Rockville, St. Charles, St. Marys City, Silver Spring, Wheaton, suburbs of D.C..
Nearby area codes are
202,
301,
304,
410,
443,
540,
571,
667,
703,
717,
804 and
814.
Search for a phone number:
240 Area Code Exchanges 856-909:
240-856-xxxx 240-857-xxxx 240-858-xxxx 240-859-xxxx 240-860-xxxx 240-861-xxxx 240-862-xxxx 240-863-xxxx 240-864-xxxx 240-865-xxxx 240-866-xxxx 240-867-xxxx 240-868-xxxx 240-869-xxxx 240-870-xxxx 240-871-xxxx 240-872-xxxx 240-873-xxxx 240-874-xxxx 240-875-xxxx 240-876-xxxx 240-877-xxxx 240-878-xxxx 240-879-xxxx 240-880-xxxx 240-881-xxxx 240-882-xxxx 240-883-xxxx 240-884-xxxx 240-885-xxxx 240-886-xxxx 240-887-xxxx 240-888-xxxx 240-889-xxxx 240-890-xxxx 240-891-xxxx 240-892-xxxx 240-893-xxxx 240-894-xxxx 240-895-xxxx 240-896-xxxx 240-897-xxxx 240-898-xxxx 240-899-xxxx 240-900-xxxx 240-901-xxxx 240-902-xxxx 240-903-xxxx 240-904-xxxx 240-905-xxxx 240-906-xxxx 240-907-xxxx 240-908-xxxx 240-909-xxxx