The area code 443 is located in Baltimore, Maryland.
The 443 area code serves much of Baltimore, Maryland, and its surrounding regions. Established in 1997 as an overlay for the existing 410 area code, it covers major landmarks and neighborhoods, including:
Baltimore is known for its rich history, vibrant arts scene, and iconic attractions like the Inner Harbor and Fort McHenry, the birthplace of the national anthem. Additionally, nearly 2.8 million people rely on area code 443 for their communications, showcasing the area's urban importance and growth.