Where Is Area Code 410?
Area code 410 serves eastern Maryland, with Annapolis as its primary city. The coverage includes the Baltimore metropolitan area, the Eastern Shore, and communities along the Chesapeake Bay and Maryland’s Atlantic coast. Maryland is part of the South Atlantic region under the U.S. Census Bureau’s regional classification.
Area code 410 covers Baltimore City and communities in Anne Arundel, Baltimore, Carroll, Cecil, Harford, Howard, Caroline, Dorchester, Kent, Queen Anne’s, Somerset, Talbot, Wicomico, and Worcester counties. Major communities include Baltimore, Annapolis, Columbia, Salisbury, Easton, Bel Air, Elkton, and Ocean City.
The region includes the Maryland State House and U.S. Naval Academy in Annapolis, along with Baltimore’s Inner Harbor. The Chesapeake Bay and the Atlantic beaches near Ocean City are notable geographic features within the coverage area.
Cities and Communities in the 410 Area Code
- Aberdeen, Harford County
- Annapolis, Anne Arundel County
- Baltimore, Baltimore City
- Bel Air, Harford County
- Berlin, Worcester County
- Cambridge, Dorchester County
- Catonsville, Baltimore County
- Centreville, Queen Anne’s County
- Chestertown, Kent County
- Columbia, Howard County
- Crisfield, Somerset County
- Denton, Caroline County
- Dundalk, Baltimore County
- Easton, Talbot County
- Edgewood, Harford County
- Elkton, Cecil County
- Ellicott City, Howard County
- Essex, Baltimore County
- Federalsburg, Caroline County
- Glen Burnie, Anne Arundel County
- Havre de Grace, Harford County
- Ocean City, Worcester County
- Odenton, Anne Arundel County
- Parkville, Baltimore County
- Pocomoke City, Worcester County
- Princess Anne, Somerset County
- Salisbury, Wicomico County
- Severna Park, Anne Arundel County
- Snow Hill, Worcester County
- Stevensville, Queen Anne’s County
- Towson, Baltimore County
- Westminster, Carroll County
History of Area Code 410
Maryland used area code 301 statewide after the North American Numbering Plan began in 1947. Area code 410 began service on October 6, 1991, when Maryland split 301 and assigned eastern Maryland to the new code.
Area code 443 became an overlay for the 410 region in 1997, adding numbers without removing 410 coverage. Area code 667 became a second overlay in 2012. These overlays addressed growing demand for additional telephone numbers as mobile and business phone use expanded.
Key Facts About Area Code 410
- Area code 410 is a geographic area code in Maryland (MD), and Annapolis is its primary city.
- Maryland, including the 410 service area, lies in the South Atlantic region under U.S. Census Bureau classifications.
- Telephone numbers with area code 410 use Eastern Time.
- Area code 410 began service on October 6, 1991, after a split from Maryland’s original area code 301.
- Area code 443 has overlaid the 410 region since 1997.
- Area code 667 has overlaid the same Maryland region as 410 and 443 since 2012.
- The coverage includes the U.S. Naval Academy and Maryland State House in Annapolis, plus Johns Hopkins University in Baltimore.
- The 410 service area includes Chesapeake Bay shoreline and Atlantic coastal communities such as Ocean City.
Frequently Asked Questions
What state is area code 410 in?
Area code 410 is in Maryland.
What major cities use area code 410?
Major Maryland places with 410 numbers include Annapolis, Baltimore, Salisbury, Columbia, Easton, Elkton, and Ocean City.
What time zone is area code 410 in?
Area code 410 is in Eastern Time.
Is area code 410 a toll-free number?
No. Area code 410 is a geographic area code, not a toll-free code.