Maryland Phone Number Lookup

What are Maryland Area Codes and their Locations?

The ability to recognize the area codes of incoming calls could be the difference between receivers accepting or rejecting phone calls. People are more inclined to reject calls from area codes and phone numbers they are unfamiliar with, due to the proliferation of scam calls. For unknown numbers, they can use reverse phone lookup to identify strange callers. An overview of area codes for Maryland and their locations is shown below:

301 - Location
240 - Location
410 - Location
443 - Location
667 - Location

Who Controls Maryland Area Codes?

The regulatory authority in Maryland which is responsible for the institution and management of area codes is the Maryland Public Service Commission. Maryland area codes are only assigned for use in the State of Maryland. Area code overlays are introduced in regions that require additional telephone numbers when the numbers available from the existing area code are exhausted or insufficient.

Where is Area Code 310?

Area code 301 is a telephone area code for the Western part of Maryland. It serves Maryland's portion of the Greater Washington, D.C., metro area, portions of Southern Maryland, and the more rural areas in the western portion of the state. This includes the communities of Cumberland, Frederick, Hagerstown, Gaithersburg, Potomac, Bethesda, Rockville, Landover, and Silver Spring. It is one of the original area codes established in 1947 and initially covered the entire state of Maryland.

Where is Area Code 240?

Area code 240 was introduced in 1997 as the overlay area code for the regions covered by area code 301. This also includes the counties of Allegany, Charles, Frederick, Garrett, Howard, Montgomery, Prince George's, St. Mary's, and Washington.

Where is Area Code 410?

Area code 410 is the telephone area code serving the Eastern half of Maryland, including the Baltimore metropolitan area and the Eastern Shore. It was introduced in 1991.

Where is Area Code 443?

Area code 443 is the overlay code for the regions covered by area code 410. It was introduced in 1997.

Where is Area Code 667?

Area code 667 is the second overlay code for the regions initially covered by area code 410. It was introduced in 2011