Army National Guard Recruting 4244 Montgomery Rd Ellicott City, MD 21043 Phone : (410) 465-5000 Business Category National Security Office Of Human Resources--military Department, Ellicott City Armory, Recruiter Ellicott City, MD 21043 Phone : (410) 465-5000 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Maryland State Of--medical Examiners Office, Ellicott City Armory, Recruiter Ellicott City, MD 21043 Phone : (410) 465-5000 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools