Cognitec Systems GmbH

Any device whose MAC address begins with 3C:35:56 has a network interface built by Cognitec Systems 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

3C:35:56

Organization

Cognitec Systems GmbH

Address

Großenhainer Str. 101 Dresden Saxony DE 01127

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.