Some cities covered by area code 410 are Annapolis, Arbutus, Arnold, Baltimore, Bel Air North, Bel Air South, Carney, Catonsville, Columbia, Crofton, Dundalk, Edgewood, Eldersburg, Ellicott City, Essex, Glen Burnie, Lochearn, Middle River, Milford Mill, Odenton, Parkville, Perry Hall, Pikesville, Randallstown, Reisterstown, Salisbury, Severn, Severna Park, South Gate, Towson, West Elkridge