Maryland Area Codes
The Old Line State
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Major Cities in Maryland
About Maryland Phone Numbers
Maryland, known as "The Old Line State", is located in the Mid-Atlantic region of the United States with a population of approximately 6,177,224 residents. The state capital is Annapolis, while the largest city is Baltimore. Maryland operates in the Eastern (ET) timezone and covers 12,406 square miles.
Phone numbers in Maryland are assigned across 6 different area codes, including 227, 240, 301, 410, 443 and more. Major cities like Baltimore, Frederick, Rockville, Gaithersburg each have their own area code coverage.
If you receive calls from Maryland area codes, use our free phone lookup tool to identify the caller. You can check if a number has been reported as spam, find carrier information, and see community reports from other users who received calls from the same number.
Fatti maschii, parole femine (Strong deeds, gentle words)- State Motto of Maryland
Frequently Asked Questions
Maryland has 6 area codes: 227, 240, 301, 410, 443, 667. These area codes cover the entire state, including major cities like Baltimore, Frederick, Rockville.
Maryland operates in the Eastern (ET) timezone. When calling Maryland phone numbers, consider the time difference to avoid calling at inappropriate hours.
Use our free phone number lookup tool to check if a Maryland number has been reported as spam. Simply enter the phone number in the search box above to see community reports, spam ratings, and caller information.
Maryland has a population of approximately 6,177,224 residents, making it a mid-sized state in the United States.