BEIJING SOGOU TECHNOLOGY DEVELOPMENT CO., LTD.

Any device whose MAC address begins with C4:F1:D1 has a network interface built by BEIJING SOGOU TECHNOLOGY DEVELOPMENT 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

C4:F1:D1

Organization

BEIJING SOGOU TECHNOLOGY DEVELOPMENT CO., LTD.

Address

SOHU.COM INTERNET PLAZA, NO.1 PARK, ZHONGGUANCHUN EAST ROAD. HAIDIAN DISTRICT Beijing CN 100000

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.