Marquardt Schaltsysteme SCS

Any device whose MAC address begins with AC:DB:22 has a network interface built by Marquardt Schaltsysteme SCS. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

AC:DB:22

Organization

Marquardt Schaltsysteme SCS

Address

Muenchen 2 Sibiu Romania RO 550018

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.