Area code 443 serves Eastern Maryland which consists of cities like Columbia, Glen Burnie, Ellicott City, and Dundalk. 443 is an overlay of area code 410. It was established in the year 1997.

What state and time zone is area code 443?

443 is an area code located in the state of Maryland, US.

What area code is 433 in USA?

Area codes 410, 443, and 667 are telephone area codes serving the eastern half of the U.S. state of Maryland, including the Baltimore metropolitan area and the Eastern Shore. The 410 area code is the original area code, while the 443 and 667 codes are overlay codes.

Area code 443 is an area code that covers Eastern Maryland, including Baltimore. Area code 443 overlays the area code of 410 and 667. Maryland has area codes of 227, 240, 301, 410, 443, 667.