Mitsuba Corporation

Any device whose MAC address begins with 6C:81:FE has a network interface built by Mitsuba Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

6C:81:FE

Organization

Mitsuba Corporation

Address

1-2681 Kiryu Gunma JP 376-8555

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.