FAG Industrial Services GmbH

Any device whose MAC address begins with F4:3D:80 has a network interface built by FAG Industrial Services 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

F4:3D:80

Organization

FAG Industrial Services GmbH

Address

Kaiserstrasse 100 Herzogenrath NRW DE 52134

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.