Support: Mon-Fri 10 AM to 6 PM (German time) +49 721 754 0 755 0


Postal address

netcup GmbH
Daimlerstraße 25
76185 Karlsruhe, Germany

You can also save time and postage by sending your letters to our fax machine.

Our fax number: +49 721 7540755-9


Important: To avoid misunderstandings, please fax any correspondence related to your contract (e.g. notices of termination). If you post documents to us, please use a signed-for service with proof of delivery.

Thank you!