Advanced Digital Broadcast SA

Any device whose MAC address begins with C4:77:AF has a network interface built by Advanced Digital Broadcast SA. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

C4:77:AF

Organization

Advanced Digital Broadcast SA

Address

Route de Crassier 21, B2 Eysins CH CH-1262

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.