GIESECKE & DEVRIENT GmbH

Any device whose MAC address begins with 00:90:D3 has a network interface built by GIESECKE & DEVRIENT 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

00:90:D3

Organization

GIESECKE & DEVRIENT GmbH

Address

PRINZREGENTENSTRASSE 159 D-81677 MUNCHEN DE

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.