BCTech

Any device whose MAC address begins with C8:1B:5C has a network interface built by BCTech. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

C8:1B:5C

Organization

BCTech

Address

14 Building, Tiandeng road 259# shanghai xuhui district, shanghai CN 200237

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.