COMPUTER OFFICE Co.,Ltd.

Any device whose MAC address begins with 4C:07:C9 has a network interface built by COMPUTER OFFICE Co.,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

4C:07:C9

Organization

COMPUTER OFFICE Co.,Ltd.

Address

1368-10 Muramatsu-cho Ise-shi Mie-ken JP 515-0507

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.