MTU Friedrichshafen GmbH

Any device whose MAC address begins with 00:0E:21 has a network interface built by MTU Friedrichshafen 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

00:0E:21

Organization

MTU Friedrichshafen GmbH

Address

Maybachplatz 1 Friedrichshafen Baden Wuertemberg DE 88040

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.