Tokyo Electron Device Limited

Any device whose MAC address begins with 00:50:4D has a network interface built by Tokyo Electron Device Limited. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:50:4D

Organization

Tokyo Electron Device Limited

Address

17, Higashikata-cho, Tsuzuki-ku, Yokohama-shi Kanagawa-ken JP 224-0045

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.