Woojeon&Handan

Any device whose MAC address begins with F4:7A:4E has a network interface built by Woojeon&Handan. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

F4:7A:4E

Organization

Woojeon&Handan

Address

569-12, Gasan-dong, Seoul KR 153-803

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.