BlueN

Any device whose MAC address begins with C4:4E:1F has a network interface built by BlueN. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

C4:4E:1F

Organization

BlueN

Address

121-122 3F Daegu Korea KR 700-809

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.