Hitachi Maxell, Ltd., Optronics Division

Any device whose MAC address begins with 3C:B7:92 has a network interface built by Hitachi Maxell, Ltd., Optronics Division. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

3C:B7:92

Organization

Hitachi Maxell, Ltd., Optronics Division

Address

5030 Totsuka-cho, Totsuka-ku Yokohama Kanagawa JP 244-0003

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.