Maryland Area Codes
For Dialing Long Distance
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Area codes within the state of Maryland include:
301 and 410.
Please note that some cities/towns/counties may be split, resulting in more than one area code for a region.
Area code 301 (Maryland): - Ashton
- Beltsville
- Bethesda
- Bowie
- Brunswick
- California
- Chevy Chase
- Clinton
- College Park
- Cumberland
- Damascus
- Fort Washington
- Frederick
- Gaithersburg
- Garrett Park
- Germantown
- Greenbelt
- Hagerstown
- Hyattsville
- La Plata
- Lanham
- Laurel
- Lexington Park
- McHenry
- Mechanicsville
- Middletown
- Montgomery Village
- Mount Airy
- New Market
- Olney
- Potomac
- Riverdale
- Rockville
- Silver Spring
- Suitland
- Takoma Park
- Upper Marlboro
- Waldorf
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Area code 410 (Maryland):- Aberdeen
- Annapolis
- Arnold
- Baltimore
- Bel Air
- Brooklyn
- Cambridge
- Catonsville
- Cockeysville
- Columbia
- Crisfield
- Crofton
- Deale
- Dundalk
- Edgewater
- Edgewood
- Elkridge
- Elkton
- Ellicott City
- Essex
- Federalsburg
- Fort Meade
- Glen Burnie
- Hampstead
- Hunt Valley
- Joppa
- Manchester
- Middle River
- New Windsor
- Ocean City
- Odenton
- Owings Mills
- Parkville
- Pasadena
- Perry Hall
- Perryville
- Pikesville
- Randallstown
- Reisterstown
- Rhodesdale
- Rosedale
- Saint Michaels
- Salisbury
- Severn
- Severna Park
- Towson
- Westminster
- Whaleyville
- Woodstock
- Wye Mills
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