Kyokko Tsushin System CO.,LTD

Any device whose MAC address begins with B8:38:CA has a network interface built by Kyokko Tsushin System 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

B8:38:CA

Organization

Kyokko Tsushin System CO.,LTD

Address

2-25-7 sakado,Takatsu-ku Kawasaki Kanagawa JP 213-0012

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.