KATHREIN-WERKE KG

Any device whose MAC address begins with 00:D0:55 has a network interface built by KATHREIN-WERKE KG. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:D0:55

Organization

KATHREIN-WERKE KG

Address

ANTON-KATHREIN-STRASS 1-3 DE

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.