Amsterdam Data Tower is a data centre in Amsterdam run by Digital Realty. It's in a Science Park close to the University of Amsterdam.
The facility used to be run by TelecityGroup and was called Telecity AMS1. Telecity was acquired by Equinix, and as part of the conditions required to get that takeover approved, Equinix promised the European Commission it would sell off two Amsterdam data centres. And so now this data centre is owned by Digital Realty.