301 Area Code

Maryland Map

301 area code is a telephone code covering the area of Maryland, including part of Washington DC that belongs to this state. It was created in 1947 and it was only used in Maryland for nearly four decades. In 1991, 301 area code was split to create 410. In 1997, an overlay code – 240 – was created.

Here is the list of places where 301 area code is used: Bethesda (Montgomery), Frederick (Frederick), Aspen Hill (Montgomery), Bowie (Prince George’s), Silver Spring (Montgomery), Gaithersburg (Montgomery), Accident (Garrett), Germantown (Montgomery), Abell (St. Mary’s), Adamstown (Frederick), Accokeek (Prince George’s), Ashton (Montgomery), Avenue (St. Mary’s), Andrews Air Force Base (Prince George’s), Barton (Allegany), Aquasco (Prince George’s), Bel Alton (Charles), Beallsville (Montgomery), Bittinger (Garrett), Barnesville (Montgomery), Benedict (Charles), Bladensburg (Prince George’s), Beltsville (Prince George’s), Bloomington (Garrett), Big Pool (Washington), Boyds (Montgomery), Braddock Heights (Frederick), Brownsville (Washington), Brandywine (Prince George’s), Boonsboro (Washington), Brinklow (Montgomery), Bryans Road (Charles), Brentwood (Prince George’s), Brunswick (Frederick), Buckeystown (Frederick), Burtonsville (Montgomery), Brookeville (Montgomery), Bushwood (St. Mary’s), California (St. Mary’s), Capitol Heights (Prince George’s), Bryantown (Charles), Cabin John (Montgomery), Cascade (Washington), Chaptico (St. Mary’s), Cavetown (Washington), Cheltenham (Prince George’s), Callaway (St. Mary’s), Burkittsville (Frederick), Chewsville (Washington), Clarksburg (Montgomery), Clements (St. Mary’s), Clinton (Prince George’s), Coltons Point (St. Mary’s), Chevy Chase (Montgomery), Corriganville(Allegany), Cobb Island (Charles), College Park (Prince George’s), Dameron (St. Mary’s), Dickerson (Montgomery), Cumberland (Allegany), Drayden (St. Mary’s), Ellerslie (Allegany), District Heights (Prince George’s), Compton (St. Mary’s), Damascus (Montgomery), Emmitsburg (Frederick), Derwood (Montgomery), Faulkner (Charles), Clear Spring (Washington), Friendship (Anne Arundel), Eckhart Mines (Allegany), Fort Washington (Prince George’s), Frostburg (Allegany), Fairplay (Washington), Garrett Park (Montgomery), Glenn Dale (Prince George’s), Flintstone (Allegany), Glen Echo (Montgomery), Friendsville (Garrett), Charlotte Hall (Charles), Great Mills (St. Mary’s), Hagerstown (Washington), Grantsville (Garrett), Greenbelt (Prince George’s), Funkstown (Washington), Highland (Howard), Hughesville (Charles), Helen (St. Mary’s), Hancock (Washington), Hyattsville (Prince George’s), Ijamsville (Frederick), Highfield (Washington), Ironsides (Charles), Hollywood (St. Mary’s), Jefferson (Frederick), Kitzmiller (Garrett), La Plata (Charles), Issue (Charles), Laurel (Anne Arundel), Kensington (Montgomery), Lanham (Prince George’s), Indian Head (Charles), Ladiesburg (Frederick), Knoxville (Frederick), Howa, Keedysville (Washington), Lexington Park (St. Mary’s), Little Orleans (Allegany), Loveville (St. Mary’s), Lonaconing (Allegany), Maugansville (Washington), Leonardtown (St. Mary’s), Mccoole (Allegany), Luke (Allegany), Mechanicsville (St. Mary’s), Libertytown (Frederick), Mc Henry (Garrett), Midland (Allegany), Marbury (Charles), Morganza (St. Mary’s), Monrovia (Frederick), Mount Airy (Frederick), Middletown (Frederick), Mount Savage (Allegany), Midlothian (Allegany), Myersville (Frederick), Mount Rainier (Prince George’s), New Market (Frederick), New Midway (Frederick), Newburg (Charles), Oldtown (Allegany), Olney (Montgomery), Mount Victoria (Charles), Montgomery Village (Montgomery), Oakland (Garrett), Park Hall (St. Mary’s), Nanjemoy (Charles), Piney Point (St. Mary’s), Oxon Hill (Prince George’s), Pomfret (Charles), Pinto (Allegany), Port Tobacco (Charles), Rawlings (Allegany), Owings (Calvert), Poolesville (Montgomery), Ridge (St. Mary’s), Rockville (Montgomery), Rock Point (Charles), Rocky Ridge (Frederick), Sabillasville (Frederick), Point Of Rocks (Frederick), Patuxent River (St. Mary’s), Rohrersville (Washington), Saint Inigoes (St. Mary’s), Potomac (Montgomery), Scotland (St. Mary’s), Smithsburg (Washington), Saint Mary’s City (St. Mary’s), Riverdale (Prince George’s), Sandy Spring (Montgomery), Saint James (Washington), Suitland (Prince George’s), Spencerville (Montgomery), Sharpsburg (Washington), Takoma Park (Montgomery), Swanton (Garrett), Tall Timbers (St. Mary’s), Thurmont (Frederick), Spring Gap (Allegany), Temple Hills (Prince George’s), Valley Lee (St. Mary’s), Unionville (Frederick), Waldorf (Charles), Tuscarora (Frederick), Washington Grove (Montgomery), Upper Marlboro (Prince George’s), Westernport (Allegany), Williamsport (Washington), Walkersville (Frederick), Woodsboro (Frederick), Welcome (Charles) and White Plains (Charles).

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