SGSG SCIENCE & TECHNOLOGY CO. LTD

Any device whose MAC address begins with F4:EF:9E has a network interface built by SGSG SCIENCE & TECHNOLOGY 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

F4:EF:9E

Organization

SGSG SCIENCE & TECHNOLOGY CO. LTD

Address

3RD Fl, Bldg A3, No.1 software Park Rd Zhuhai Guangdong CN 519085

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.