The 667 area code belongs to the state of Maryland (MD) and some of the locations covered are Baltimore, Essex, Glen Burnie and more:
|State||Larger cities in area code 667||Time Zone|
|Annapolis, Baltimore, Carney, Catonsville, Columbia, Dundalk, Eldersburg, Ellicott City, Essex, Glen Burnie, Parkville, Perry Hall, Pikesville, Randallstown, Salisbury, Severn, Severna Park, South Gate, Towson
Current time is
|-- overlays area codes 410 and 443 --|
Introduced on March 24, 2012 area code 667 is part of overlay complex 410/443/667 covering the eastern area of Maryland. For the official Nanpa announcement and a detailed map of Maryland area codes see this PDF document.