Beijing Winicssec Technologies Co., Ltd.

Any device whose MAC address begins with C4:BA:A3 has a network interface built by Beijing Winicssec Technologies 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

C4:BA:A3

Organization

Beijing Winicssec Technologies Co., Ltd.

Address

F block 9th floor 907 of Jiahua Building, No.9 Shangdi 3rd Street 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.