KOMATSU LTD.

Any device whose MAC address begins with CC:3F:8A has a network interface built by KOMATSU 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

CC:3F:8A

Organization

KOMATSU LTD.

Address

3-25-1, Shinomiya Hiratsuka-Shi Kanagawa-Ken JP 254-8555

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.