Beijing Gefei Tech. Co., Ltd

Any device whose MAC address begins with C8:EF:2E has a network interface built by Beijing Gefei Tech. 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

C8:EF:2E

Organization

Beijing Gefei Tech. Co., Ltd

Address

A-603 Power Creative Plaza, NO.1 Shangdi E. Rd.,Haidian District, Beijing CN 100085

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.