Zenisu Keisoku Inc.

Any device whose MAC address begins with 00:0C:18 has a network interface built by Zenisu Keisoku Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:0C:18

Organization

Zenisu Keisoku Inc.

Address

2-13-37 Fuchu-shi Tokyo JP 183-0027

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.