Contact & Opening Times

  communication channels to the IT-SD  


In the event of the particular situation, different opening hours will apply until then. You can reach us by phone between 07:30 am and 06:00 pm. In addition, the chat support has been extended to the same period. You find further information on our always up-to-date current tips and information.



Chat Support

Monday to Friday, 07:30am - 06:00pm

Note: On every 2nd and 4th Friday of every month we are available via chat from 10:30am!

Phone & Fax

0241 / 80-24687 - 0241 / 80-22981
Monday to Friday, 07:30am - 06:00pm

Personal acceptance of DFN certificates

IT Center Office Building SW23
Seffenter Weg 23, upper entrance
Tuesday to Thursday, 08:00am to 03:00pm
by appointment only.