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The blue area is assigned area codes 301, 240, and 227; the red area is area codes 410, 443 and 667. The state of Maryland is served by the following area codes: Area codes. Numbering plan area. 227.
Area codes 410, 443, and 667. Area codes 410, 443, and 667 are telephone area codes in the North American Numbering Plan (NANP) for the eastern half of the U.S. state of Maryland. The numbering plan area (NPA) includes the Baltimore metropolitan area and the Eastern Shore. The three area codes are overlay codes for one numbering plan area ...
Area code 301 was the first area code for all of Maryland, from 1947, when the area code system was created, until 1991, when everything from Baltimore eastward split off as area code 410. In 1997, area code 240 was added as an overlay area code for the 301 territory. On June 14, 2023, a third overlay code, 227, was added to provide more ...
UTC−4 (EDT) The Washington metropolitan area, also referred to as the D.C. area, Greater Washington, the National Capital Region, or locally as the DMV (short for District of Columbia, Maryland, and Virginia), is the metropolitan area centered around Washington, D.C., the federal capital of the United States. The metropolitan area includes ...
List of Maryland area codes; 0–9. Area codes 301, 240, and 227; Area codes 410, 443, and 667
2389206 [4] Bethesda (/ bəˈθɛzdə /) is an unincorporated, census-designated place in southern Montgomery County, Maryland, United States. Located just northwest of Washington, D.C., it is a major business and government center of the Washington metropolitan region and a national center for medical research.
Website. www.collegeparkmd.gov. College Park is a city in Prince George's County, Maryland, United States, [3] located approximately four miles (6.4 km) from the northeast border of Washington, D.C. Its population was 34,740 at the 2020 United States census. It is the home of the University of Maryland, College Park.
1993: split to create 905. 2001: overlaid by 647. 2013: overlaid by 437. 2025: overlaid by 942. area code 387 is reserved as a fifth code for the region. 417. Missouri (Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri) 1950. created from parts of the area codes 314 and 816.