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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 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 ...
Potomac (listen ⓘ) is an unincorporated community and census-designated place in Montgomery County, Maryland, United States. As of the 2020 census, it had a population of 47,018. [3] It is named after the nearby Potomac River. A part of the Washington metropolitan area, many Potomac residents work in nearby Washington, D.C., and Northern ...
From unorganized territory. Was named Potomac County between 1654 and 1658. The Virgin Mary, first county named in a colony intended to be a haven for Catholics: 115,281: 611 sq mi (1,582 km 2) Talbot County: 041: Easton: 1662: From part of Kent County: Grace, Lady Talbot, sister of Cecil Calvert, 2nd Baron Baltimore: 37,823: 477 sq mi (1,235 ...
The three area codes are overlay codes for one numbering plan area, among which 410 was the initial area code for the NPA, when it was split from area code 301 in 1991. 443 and 667 found assignment primarily in cellular service and for competitive local exchange carriers, such as Comcast and Cavalier Telephone, when introduced, but have since ...
24-56875. GNIS feature ID. 2389581 [ 2] North Potomac is a census-designated place and unincorporated area in Montgomery County, Maryland, United States. It is located less than 5 miles (8.0 km) north of the Potomac River, and is about 20 miles (32 km) from Washington, D.C. It has a population of 23,790 as of 2020.
Area codes 202 and 771. Coordinates: 38°54′N 77°2′W. The red area is the District of Columbia, served by area codes 202 and 771. Area codes 202 and 771 are telephone area codes in the North American Numbering Plan (NANP) for Washington, D.C. Area code 202 was one of the original North American area codes established in October 1947 by AT&T.
Ethnic groups. United States portal. v. t. e. Maryland is the richest state in the United States of America, with a median household income of $69,272 according to the 2010 census. [ 1] Per capita income was $25,615 in 2000 and personal per capita income was $37,331 in 2003.