Polytron Vertrieb GmbH

Any device whose MAC address begins with A0:A7:63 has a network interface built by Polytron Vertrieb 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

A0:A7:63

Organization

Polytron Vertrieb GmbH

Address

Langwiesenweg 64-71 Bad Wildbad Baden-Württemberg DE 75323

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.