Vispiron Rotec GmbH

Any device whose MAC address begins with F4:CD:90 has a network interface built by Vispiron Rotec GmbH. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

F4:CD:90

Organization

Vispiron Rotec GmbH

Address

Frankfurter Ring 224 München Bayern DE 80807

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.