AACO Departmental Telephone Directory
Switchboard - Staffed 8:00 a.m. - 4:30 p.m. Monday through Friday except holidays.
(410) 222-7000 (Local Area including Baltimore)(301) 970-8250 (Washington Area)(410) 867-2027 (South County)
NOTE: Additional information including fax numbers is available by clicking on the department name.