SHENZHEN BUL-TECH CO.,LTD.

Any device whose MAC address begins with 20:C8:B3 has a network interface built by SHENZHEN BUL-TECH CO.,LTD.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

20:C8:B3

Organization

SHENZHEN BUL-TECH CO.,LTD.

Address

Area C,4/F,NO.59,Longjing 2nd Road, SHENZHEN GuangDong CN 518101

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.