Area Codes for Baltimore, Maryland

The area codes used in the Baltimore metropolitan area are: 410, 443. See below for details.

In Baltimore, area codes are always included in written telephone numbers and area codes must be dialed for all calls, even for local calling. All United States phone numbers are 10-digits total, including a 3-digit area code and a 7-digit local subscriber number.

Baltimore area code information:

Baltimore area codes:
410, 443
more...

Area codes are used to route phone calls to a specific geographic area within a country. All area codes in the US are exactly 3-digits long.

In the past, a given region often had just one area code. Nowadays, many cities and towns in denser urban areas have 2 or more area codes.

To make an inbound international call (or domestic long distance call) to a Baltimore landline or mobile phone, you need to dial the appropriate 3-digit area code, followed by a 7-digit local subscriber number.

If you don't have a fully specified 10-digit phone number, including area code, you will not be able to complete an inbound call.

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Area Codes Used In & Near Baltimore, Maryland

The following table shows the area codes in use in the Baltimore metropolitan area.

Baltimore Area Codes

Area Codes Main Locations
 410 
 443 
Covers the city of Baltimore, and the nearby towns of Catonsville, Dundalk, Ellicott City, Glen Burnie, Owings Mills, and Towson. Also covers other locations in eastern Maryland, such as Aberdeen, Annapolis, Cambridge, Chestertown, and Salisbury.
 301 
 240 
Covers locations in western Maryland, including Bethesda, Cumberland, Frederick, Hagerstown, and Potomac.

See maps and other area code listings below for further information.

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Area Codes for Towns in Baltimore Area

The table below provides area codes for Baltimore and the largest nearby towns.

LocationArea Code(s)
Annapolis MD area code 410 / 443
Arbutus MD area code 410 / 443
Arnold MD area code 410 / 443
Baltimore MD area code 410 / 443
Bel Air North MD area code 410 / 443
Bel Air South MD area code 410 / 443
Carney MD area code 410 / 443
Catonsville MD area code 410 / 443
Columbia MD area code 410 / 443
Crofton MD area code 410 / 443
Dundalk MD area code 410 / 443
Edgewood MD area code 410 / 443
Eldersburg MD area code 410 / 443
Elkridge MD area code 410 / 443
Ellicott City MD area code 410 / 443
Essex MD area code 410 / 443
Glen Burnie MD area code 410 / 443
Lochearn MD area code 410 / 443
Middle River MD area code 410 / 443
Milford Mill MD area code 410 / 443
Odenton MD area code 410 / 443
Parkville MD area code 410 / 443
Perry Hall MD area code 410 / 443
Pikesville MD area code 410 / 443
Randallstown MD area code 410 / 443
Reisterstown MD area code 410 / 443
Salisbury MD area code 410 / 443
Severn MD area code 410 / 443
Severna Park MD area code 410 / 443
South Gate MD area code 410 / 443
Towson MD area code 410 / 443

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Lookup Baltimore Area Codes

To find the area codes (or ZIP codes) used in the Baltimore area, please use the WhitePages.com search widgets below. The first widget looks up area codes and ZIP codes by town. The second widget does reverse lookup by area code or ZIP code.

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Baltimore, Maryland Area Code Maps

The following map shows area codes for the Baltimore area.

Baltimore, Maryland Area Code Map

Baltimore, Maryland area code map

Source: WhitePages.com

Maps may not be completely up to date. Check other map links below if this appears out of date.

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City Codes vs. Area Codes

In some cases, area codes may be referred to as city codes. However, a 'city code' more correctly refers to the codes used to designate airports and other geographic locations. These codes are issued under the United Nation's UN/LOCODE system and/or the IATA airport coding system. The city code for Baltimore is BAL.

Other Area Code Information

* NANPA is the North American Numbering Plan Administrator. CNA is the Canadian Numbering Administrator. These are the official groups responsible for phone numbers in the US and Canada.

Baltimore online telephone directories
Baltimore dialing steps

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