Beijing Tricolor Technology Co., Ltd

Any device whose MAC address begins with B8:61:42 has a network interface built by Beijing Tricolor 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

B8:61:42

Organization

Beijing Tricolor Technology Co., Ltd

Address

Room 808, Building 1, Yard 39, Linfeng 2nd Road, Haidian Beijing CN 102206

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.