Datasoft ISDN Systems GmbH

Any device whose MAC address begins with 00:09:76 has a network interface built by Datasoft ISDN Systems 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

00:09:76

Organization

Datasoft ISDN Systems GmbH

Address

Schillerplatz 3 St. Poelten Lower Austria AT 3100

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.