Knorr-Bremse IT-Services GmbH

Any device whose MAC address begins with 00:1D:69 has a network interface built by Knorr-Bremse IT-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

00:1D:69

Organization

Knorr-Bremse IT-Services GmbH

Address

Moosacher Str. 80 Muenchen BY DE 80809

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.