Nuki Home Solutions GmbH

Any device whose MAC address begins with 54:D2:72 has a network interface built by Nuki Home Solutions 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

54:D2:72

Organization

Nuki Home Solutions GmbH

Address

Muenzgrabenstrasse 92 Graz AT 8010

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.