DRTECH

Any device whose MAC address begins with C4:FD:E6 has a network interface built by DRTECH. 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:FD:E6

Organization

DRTECH

Address

29, Dunchon-daero 541beon-gil, Jungwon-gu Seongnam Gyeonggi-do KR 13216

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.