Dipl.-Ing. H. Horstmann GmbH

Any device whose MAC address begins with B0:7D:62 has a network interface built by Dipl.-Ing. H. Horstmann 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

B0:7D:62

Organization

Dipl.-Ing. H. Horstmann GmbH

Address

Humboldtstraße 2 Heiligenhaus DE 42579

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.