FDSYS

Any device whose MAC address begins with FC:22:D3 has a network interface built by FDSYS. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

FC:22:D3

Organization

FDSYS

Address

12, Seonyu-ro 43na-gil, Yeongdeungpo-gu Seoul KR 07210

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.