Adva Network Security GmbH

Any device whose MAC address begins with 70:BD:D2 has a network interface built by Adva Network Security 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

70:BD:D2

Organization

Adva Network Security GmbH

Address

Justus-von-Liebig-Strasse 7 Berlin DE 12489

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.