Baumer Holding

Any device whose MAC address begins with 9C:C9:50 has a network interface built by Baumer Holding. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

9C:C9:50

Organization

Baumer Holding

Address

Hummelstrasse 17 Frauenfeld Thurgau CH 8501

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.