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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:
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 ...
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 ...
The region's continued growth in the 1990s ultimately led to both suburban area codes being overlaid, with area code 240 overlaying 301 in 1997, and area code 571 overlaying 703 in 2000. Years after the introduction of mobile number portability , many cell phone customers on the Virginia and Maryland sides of the metro have 202 numbers.
Potomac Park (listen ⓘ) is an unincorporated subdivision and census-designated place (CDP) located on the North Branch Potomac River in Allegany County, Maryland, United States. As of the 2010 census , it had a population of 2,530. [ 4 ]
Maryland Route 191 (MD 191) is a state highway in southwestern Montgomery County in the U.S. state of Maryland.. Known for most of its length as Bradley Boulevard, the highway runs 7.16 miles (11.52 km) from MD 190 (River Road) in Potomac east through Bethesda to MD 185 (Connecticut Avenue) in Chevy Chase.
Falls Road Local Park (also locally referred to as Hadley's Park) is an urban park located in Potomac, Maryland.The park covers twenty acres acquired by Maryland-National Capital Park and Planning Commission (M-NCPPC) in 1986. [1]