Protechna Herbst GmbH & Co. KG

Any device whose MAC address begins with 00:12:11 has a network interface built by Protechna Herbst GmbH & Co. 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

00:12:11

Organization

Protechna Herbst GmbH & Co. KG

Address

Otto Hahn Str. 26 Ottobrunn Germany/Bavaria DE 85521

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.