Fiberpro Inc.

Any device whose MAC address begins with 3C:6F:45 has a network interface built by Fiberpro 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

3C:6F:45

Organization

Fiberpro Inc.

Address

59-4 Jang-dong, Yusong-gu Deajeon KR 305-343

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.