Official Contact Information
Installation Operations Center
Hours of operation: 24 hours
Telephone: +49(0) 0631-413-7500
Defense Switched Network (DSN): (314) 484-7500
Official Unit Address:
21st Theater Sustainment Command
APO AE 09054
Headquarters Physical Address:
Mannheimer Str. 331
U.S. Army Europe Phonebook
(.mil systems only)
Email links on this page will open a new, blank email in your default email program. Be sure to provide detailed information, including the best way for us to reply.
Email the public affairs team
Email a question about this website
Public Affairs Office
Hours of operation: Mon. - Fri. 8:00 a.m.- 5:00 p.m. (European Standard Time)(Closed U.S. federal holidays)
Telephone: +49(0) 0631-413-7636/8013/8255
Defense Switched Network (DSN): (314) 484-7636/8013/8255
For members of the news media/press:
Email a media query
Give Us Your Feedback
Sponsorship or Duty Assignment Questions?
For Soldiers being assigned to Headquarters 21st TSC, the contact is the Special Troops Battalion S-1 at DSN (314) 484-7712 or 011-49-631-413-7712.
Email the battalion strength managment team here:
Visit us on Facebook and leave a comment or send us a message.
Please take a moment to tell us how we are doing using ICE . We look forward to hearing from you.