What is the phone number for the department of education? Department of Education Customer Service Phone Number The Customer Service Phone Number of Department of Education is: +1-202-401-1576, 1-800-872-5327. The Department of Education is also referred to as ED or the Education Department.What is the department of education number? The United States Department of Education is a cabinet education department based in Maryland Avenue SW, USA. The United States Department of Education was made in 17th October 1979. The United States Department of Education is also known as the ED.Where is the us department of education located? The address of Department of Education is 400 Maryland Avenue South West, Washington, D.C., United States-20202.