CG Mobile

Any device whose MAC address begins with 8C:D1:7B has a network interface built by CG Mobile. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

8C:D1:7B

Organization

CG Mobile

Address

3F Caohejing Software Building, No.461 Hongcao Rd.,XuHui District Shanghai CN 200233

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.