Shenzhen Ceres Technology Co., Ltd.

Any device whose MAC address begins with 6C:4D:51 has a network interface built by Shenzhen Ceres 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

6C:4D:51

Organization

Shenzhen Ceres Technology Co., Ltd.

Address

#601, Fl6, Bldg F, No.1008  Yangguang Community, Xili, Nanshan Shenzhen Guangdong CN 518055

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.