din Dietmar Nocker Facilitymanagement GmbH

Any device whose MAC address begins with 00:25:3B has a network interface built by din Dietmar Nocker Facilitymanagement 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

00:25:3B

Organization

din Dietmar Nocker Facilitymanagement GmbH

Address

Kotzinastrasse 5 Linz Upper Austria AT 4030

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.