Dr. Ing. h.c. F. Porsche AG

Any device whose MAC address begins with 3C:89:4D has a network interface built by Dr. Ing. h.c. F. Porsche AG. 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:89:4D

Organization

Dr. Ing. h.c. F. Porsche AG

Address

Porscheplatz 1 Stuttgart DE 70435

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.