Panasonic Automotive Systems Co.,Ltd

Any device whose MAC address begins with 54:5B:86 has a network interface built by Panasonic Automotive Systems Co.,Ltd. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

54:5B:86

Organization

Panasonic Automotive Systems Co.,Ltd

Address

5652 Matsumoto City Nagano JP 399-8730

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.