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List of Maryland area codes. 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.
- Maryland Area Code Map
- Area Codes For The Largest Cities in Maryland
- Maryland Area Code List
Maryland currently utilizes 5 area codes. When first established by AT&T and the Bell System in 1947, 301 covered the entire state of Maryland. The most recently added was 667 in 2012 as an overlay to 410. Today, 410is the most populated with an estimated 3.1 million of the state's 5.8 million residents.
Annapolis 410/667/443Arbutus 410/667/443Arnold 410/667/443Aspen Hill 301/240Sources: North American Numbering Plan Administration (NANPA), telecom providers, and the U.S. Census Bureau.
List of all area codes in Maryland. Maryland area code map, list, and phone lookup for all cities in Maryland.
Area codes list for the United States, state Maryland. Reverse phone lookup, search by area code or region. Local time and map of Maryland.
Area codes by City – 151 cities. Get a full list of Maryland area codes. Check out the area’s map, the current time, and area codes listed by city.
List of All Area Codes in Maryland. Map Key. Area Code Number. Area Code 240 / Area Code 301. Area Code 410 / Area Code 443 / Area Code 667. An Interactive Map of All Maryland Area Codes - May 2024.
3 days ago · 443. MD - Maryland. US. 667. MD - Maryland. US. View the complete list of all area codes in Maryland.
