Maryland Area Code

Maryland currently utilizes 5 area codes. When first established by AT&T and the Bell System in 1947, 301 covered the entire state of Maryland. The most recently added was 667 in 2012 as an overlay to 410. Today, 410 is the most populated with an estimated 3.1 million of the state's 5.8 million residents.

240

Timezone:Eastern

240 is an overlay for area code 301.

301

Timezone:Eastern

Accident
Accokeek
Adamstown
Adelphi
Andrews AFB
Antietam
Aquasco
Ashton-Sandy Spring
Aspen Hill
Baden
Bagtown
Bakersville
Ballenger Creek
Barnesville
Barrelville
Barton
Bartonsville
Beaver Creek
Bel Air
Beltsville
Benedict
Bensville
Berwyn Heights
Bethesda
Bier
Big Pool
Big Spring
Bladensburg
Bloomington
Boonsboro
Bowie
Bowling Green
Bowmans Addition
Braddock Heights
Brandywine
Breathedsville
Brentwood
Brock Hall
Brookeville
Brookmont
Brownsville
Brunswick
Bryans Road
Bryantown
Buckeystown
Burkittsville
Burtonsville
Cabin John
California
Calverton
Camp Springs
Capitol Heights
Carlos
Cavetown
Cearfoss
Cedarville
Charlotte Hall
Charlton
Cheverly
Chevy Chase
Chevy Chase
Chevy Chase Section Five
Chevy Chase Section Three
Chevy Chase View
Chevy Chase Village
Chewsville
Chillum
Clarksburg
Clarysville
Clear Spring
Clinton
Cloverly
Cobb Island
Colesville
College Park
Colmar Manor
Coral Hills
Corriganville
Cottage City
Crellin
Cresaptown
Croom
Cumberland
Damascus
Danville
Dargan
Darnestown
Dawson
Deer Park
Derwood
Detmold
District Heights
Downsville
Dunkirk
Eagle Harbor
Eakles Mill
East Riverdale
Eckhart Mines
Edgemont
Edmonston
Ellerslie
Emmitsburg
Ernstville
Fairland
Fairmount Heights
Fairplay
Fairview
Fairwood
Finzel
Flintstone
Forest Glen
Forest Heights
Forestville
Fort Ritchie
Fort Washington
Fountainhead-Orchard Hills
Four Corners
Franklin
Frederick
Friendly
Friendship Heights Village
Friendsville
Frostburg
Fulton
Funkstown
Gaithersburg
Gapland
Garrett Park
Garretts Mill
Germantown
Gilmore
Glassmanor
Glenarden
Glen Echo
Glenmont
Glenn Dale
Golden Beach
Gorman
Grahamtown
Grantsville
Greenbelt
Greensburg
Hagerstown
Halfway
Hancock
Highfield-Cascade
Highland
Hillandale
Hillcrest Heights
Hughesville
Hutton
Hyattsville
Indian Head
Indian Springs
Jefferson
Jennings
Jugtown
Keedysville
Kemp Mill
Kemps Mill
Kensington
Kettering
Kitzmiller
Klondike
Konterra
Lake Arbor
Landover
Landover Hills
Langley Park
Lanham
La Plata
Largo
Laurel
La Vale
Layhill
Laytonsville
Leisure World
Leitersburg
Leonardtown
Lexington Park
Libertytown
Linganore
Little Orleans
Loch Lynn Heights
Lonaconing
Luke
McCoole
Mapleville
Marlboro Meadows
Marlboro Village
Marlow Heights
Marlton
Martin's Additions
Maryland City
Maugansville
Mechanicsville
Melwood
Mercersville
Middleburg
Middletown
Midland
Midlothian
Mitchellville
Monrovia
Montgomery Village
Morningside
Moscow
Mount Aetna
Mountain Lake Park
Mount Airy
Mount Briar
Mount Lena
Mount Rainier
Mount Savage
Myersville
National
National Harbor
New Carrollton
New Market
Nikep
North Bethesda
North Brentwood
North Chevy Chase
North Kensington
North Laurel
North Potomac
Oakland
Ocean
Oldtown
Olney
Oxon Hill
Paramount-Long Meadow
Pecktonville
Peppermill Village
Pinesburg
Piney Point
Pleasant Grove
Point of Rocks
Pomfret
Pondsville
Poolesville
Port Tobacco Village
Potomac
Potomac Heights
Potomac Park
Queen Anne
Queenland
Rawlings
Redland
Reid
Ringgold
Riverdale Park
Robinwood
Rock Point
Rockville
Rohrersville
Rosaryville
Rosemont
Sabillasville
St. George Island
St. James
Sandy Hook
San Mar
Savage
Scaggsville
Seabrook
Seat Pleasant
Shaft
Sharpsburg
Silver Hill
Silver Spring
Smithsburg
Somerset
South Kensington
South Laurel
Spencerville
Springdale
Spring Gap
Spring Ridge
Suitland
Summerfield
Swanton
Takoma Park
Tall Timbers
Temple Hills
Thurmont
Tilghmanton
Travilah
Trego-Rohrersville Station
University Park
Upper Marlboro
Urbana
Vale Summit
Waldorf
Walker Mill
Walkersville
Washington Grove
Westernport
West Laurel
Westphalia
Wheaton
White Oak
Williamsport
Wilson-Conococheague
Woodland
Woodlawn
Woodmore
Woodsboro
Yarrowsburg
Zihlman

410

Timezone:Eastern

Aberdeen
Aberdeen Proving Ground
Algonquin
Allen
Annapolis
Annapolis Neck
Arbutus
Arden on the Severn
Arnold
Baltimore
Baltimore Highlands
Barclay
Bel Air
Bel Air North
Bel Air South
Berlin
Betterton
Bishopville
Bivalve
Bowleys Quarters
Brooklyn Park
Brookview
Broomes Island
Butlertown
Calvert Beach
Cambridge
Cape St. Claire
Carney
Catonsville
Cecilton
Centreville
Chance
Charlestown
Chesapeake Beach
Chesapeake City
Chesapeake Ranch Estates
Chester
Chestertown
Choptank
Church Creek
Church Hill
Cockeysville
Columbia
Cordova
Crisfield
Crofton
Crownsville
Dames Quarter
Darlington
Deale
Deal Island
Delmar
Denton
Drum Point
Dundalk
East New Market
Easton
Eden
Edesville
Edgemere
Edgewater
Edgewood
Eldersburg
Eldorado
Elkridge
Elkton
Ellicott City
Elliott
Essex
Fairlee
Fairmount
Fallston
Federalsburg
Ferndale
Fishing Creek
Fort Meade
Frenchtown-Rumbly
Friendship
Fruitland
Galena
Galestown
Galesville
Gambrills
Garrison
Georgetown
Girdletree
Glen Burnie
Goldsboro
Grasonville
Greensboro
Hampstead
Hampton
Havre de Grace
Hebron
Henderson
Herald Harbor
Highland Beach
Hillsboro
Huntingtown
Hurlock
Ilchester
Jarrettsville
Jessup
Jesterville
Joppatowne
Kennedyville
Kent Narrows
Kingstown
Kingsville
Lake Shore
Lansdowne
Linthicum
Lochearn
Long Beach
Lusby
Lutherville
Madison
Manchester
Mardela Springs
Marydel
Mayo
Mays Chapel
Middle River
Milford Mill
Millington
Mount Vernon
Nanticoke
Nanticoke Acres
Naval Academy
Newark
New Windsor
North Beach
North East
Ocean Pines
Odenton
Overlea
Owings
Owings Mills
Oxford
Parkville
Parole
Parsonsburg
Pasadena
Perry Hall
Perryman
Perryville
Pikesville
Pittsville
Pleasant Hills
Pocomoke City
Port Deposit
Powellville
Preston
Prince Frederick
Princess Anne
Pylesville
Quantico
Queen Anne
Queenstown
Randallstown
Reisterstown
Ridgely
Rising Sun
Riva
Riverside
Riviera Beach
Rock Hall
Rosedale
Rossville
St. Leonard
St. Michaels
Salisbury
Secretary
Severn
Severna Park
Shady Side
Sharptown
Smith Island
Snow Hill
Solomons
Stevensville
Stockton
Sudlersville
Sykesville
Taneytown
Taylors Island
Templeville
Tilghman Island
Timonium
Tolchester
Towson
Trappe
Tyaskin
Union Bridge
Vienna
Waterview
West Denton
Westminster
West Ocean City
West Pocomoke
Whaleyville
Whitehaven
White Marsh
Willards
Williston
Woodlawn
Worton

443

Timezone:Eastern

443 is an overlay for area code 410.

667

Timezone:Eastern

667 is an overlay for area code 410.