Geographic Regions and Area Codes

Area Code 410 is located in the state of Maryland, covering the eastern regions of the state. It encompasses 17 counties, including Baltimore City County, Baltimore County, Anne Arundel County, Howard County, and Harford County (krispcall.com). The area code serves a total of 125 cities, with major cities being Baltimore, Columbia, Ellicott City, Glen Burnie, and Dundalk (zip-codes.com).

To accommodate the increasing demand for phone numbers, Area Code 410 is overlaid by two other area codes: 443 and 667. These overlays serve the same geographic area, allowing for a greater number of unique phone numbers within the region (phone2.io).

Here are some key points about the geographic regions and area codes:

  • Area Code 410 covers 17 counties in Maryland.
  • Major cities include Baltimore, Columbia, Ellicott City, Glen Burnie, and Dundalk.
  • Overlays 443 and 667 serve the same geographic area.