GKD Gesellschaft Fur Kommunikation Und Datentechnik

Any device whose MAC address begins with 00:20:B2 has a network interface built by GKD Gesellschaft Fur Kommunikation Und Datentechnik. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:20:B2

Organization

GKD Gesellschaft Fur Kommunikation Und Datentechnik

Address

SAARBURGER RING 10-12 68229 MANNHEIM 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.