Geographic Regions and Area Codes

Area code 667 covers the eastern half of Maryland, including the Baltimore metropolitan area and parts of the Eastern Shore. It shares the same geographic region as area codes 410 and 443. This area encompasses Baltimore City, Baltimore County, and Harford County, among others. Major cities within this region include:

  • Baltimore
  • Columbia
  • Ellicott City
  • Dundalk
  • Towson

These cities are vital hubs for various industries, making the 667 area code a significant region for business operations.