Where Is Area Code 667?
Area code 667 serves eastern Maryland, with Baltimore as its primary city. Area code 667 is a geographic area code that overlays area codes 410 and 443 across the same broad region.
The coverage includes Baltimore City and communities in Anne Arundel, Baltimore, Carroll, Cecil, Harford, Howard, Kent, Queen Anne’s, Caroline, Talbot, Dorchester, Wicomico, Somerset, and Worcester counties. Major communities include Annapolis, Columbia, Ellicott City, Glen Burnie, Salisbury, and Ocean City.
The area includes Baltimore’s Inner Harbor, Fort McHenry, and the Chesapeake Bay shoreline. It also includes the Maryland State House and the United States Naval Academy in Annapolis.
Cities and Communities in the 667 Area Code
- Aberdeen, Harford County
- Annapolis, Anne Arundel County
- Baltimore, independent 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
- Dundalk, Baltimore County
- Easton, Talbot County
- Ellicott City, Howard County
- Elkton, Cecil County
- Essex, Baltimore County
- Glen Burnie, Anne Arundel County
- Havre de Grace, Harford County
- Ocean City, Worcester County
- Pocomoke City, Worcester County
- Princess Anne, Somerset County
- Salisbury, Wicomico County
- Snow Hill, Worcester County
- Towson, Baltimore County
- Westminster, Carroll County
History of Area Code 667
Area code 410 entered service on October 6, 1991, after a split from area code 301. Area code 410 took the eastern part of Maryland, including Baltimore and the Eastern Shore. Area code 443 was added in 1997 as an overlay of area code 410.
Area code 667 entered service on March 24, 2012, as a second overlay for the 410 and 443 region. The overlay added telephone number capacity without requiring existing customers to change their area codes. The three-code overlay also requires 10-digit dialing for local calls.
Key Facts About Area Code 667
- Area code 667 is a geographic telephone area code in Maryland, with Baltimore as its primary city.
- Maryland is part of the South Atlantic region of the United States Census Bureau.
- Area code 667 entered service on March 24, 2012.
- Area code 667 overlays area codes 410 and 443 instead of replacing either code.
- Area code 667 covers Baltimore City, parts of the Baltimore metropolitan area, and communities on Maryland’s Eastern Shore.
- Johns Hopkins University and Johns Hopkins Hospital are located in Baltimore within the 667 overlay region.
- The United States Naval Academy and the Maryland State House are located in Annapolis within the 667 overlay region.
- Area code 667 uses Eastern Time.
Frequently Asked Questions
What state is area code 667 in?
Area code 667 is in Maryland.
What major cities use area code 667?
Major cities and communities using area code 667 include Baltimore, Annapolis, Columbia, Ellicott City, Salisbury, and Ocean City.
What time zone is area code 667 in?
Area code 667 is in Eastern Time.
Is area code 667 a toll-free number?
No, area code 667 is a geographic area code, not a toll-free number.