Heidelberger Druckmaschinen AG

Any device whose MAC address begins with 00:01:7B has a network interface built by Heidelberger Druckmaschinen AG. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:01:7B

Organization

Heidelberger Druckmaschinen AG

Address

Kurfürsten-Anlage 52-60 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.