Jiangsu Cynray IOT Co., Ltd.

Any device whose MAC address begins with B0:C8:3F has a network interface built by Jiangsu Cynray IOT 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

B0:C8:3F

Organization

Jiangsu Cynray IOT Co., Ltd.

Address

Building D1, 1 Zidong road, Qixia district Nanjing Jiangsu CN 210000

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.