Notice for cold call companies: We report every advertising call to the Federal Network Agency. The following data is intended exclusively for customers, interested parties and suppliers.

Karsten Geyer
Baumwall 7
20459 Hamburg, Germany

USt-IdNr. DE 815134681

we prefer emails, but if you want to hear us stutter in english, feel free^^

Tel: (+49) (0)40 - 2541 33 69-0
Mon.-Fri. 8-18h CE(S)T
and emergency service 24/7

by fax: extension -9

by e-mail: support [ÄT ] fishnet-services [PUNKT ] com
of course the word dot must be replaced by a full stop and the [ÄT] by the character @

by WhatsApp: +49 (0)15678-344307 (Mon.-Fri. 8-18h (no telephony via WhatsApp possible, only chat !!) or click here

Appointments for personal meetings by arrangement, but we recommend Zoom

EU Commission platform for online dispute resolution:
We are neither obliged nor willing to participate in a dispute resolution procedure before a consumer arbitration board.

We have liability insurance for programmers:

Mehr Informationen zur IT-Haftpflicht von Karsten Geyer Fishnet Services, Hamburg


Fishnet® and Wishware® are registered trademarks.

Licence notice:
the download arrow in the remote maintenance area is from Thomas Linard (talk | contribs)


Responsible in terms of § 18 para. 2 MStV:
Karsten Geyer Fishnet Services
Baumwall 7
20459 Hamburg, Germany