C-Kur TV Inc.

Any device whose MAC address begins with 38:9F:5A has a network interface built by C-Kur TV 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

38:9F:5A

Organization

C-Kur TV Inc.

Address

A-1902, 583, Yangcheon-ro, Gangseo-gu Seoul KR 07547

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.