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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
Waldorf is a census-designated place in Charles County, Maryland, United States. Located 23 miles (37 km) south-southeast of Washington, D.C. , Waldorf is part of Southern Maryland . Its population was 81,410 at the 2020 census. [ 2 ]
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 was 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 ...
List of Maryland area codes; 0–9. Area codes 301, 240, and 227; Area codes 410, 443, and 667 This page was last edited on 24 December 2023, at 10:16 (UTC). Text ...
Map of the United States with Maryland highlighted. Maryland is a state located in the Southern United States. [1] As of the 2020 United States census, Maryland is the 18th-most populous state with 6,177,224 inhabitants and the ninth-smallest by land area, spanning 9,707.24 square miles (25,141.6 km 2) of land. [2]
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 ...
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