Panasonic Automotive Systems

Any device whose MAC address begins with 20:E5:9B has a network interface built by Panasonic Automotive Systems. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

20:E5:9B

Organization

Panasonic Automotive Systems

Address

1578-5 , Uegawa-chou Matsusaka Mie JP 5150041

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.