Shenzhen Colorful Yugong Technology and Development Co., Ltd.

Any device whose MAC address begins with A4:0C:66 has a network interface built by Shenzhen Colorful Yugong Technology and Development 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

A4:0C:66

Organization

Shenzhen Colorful Yugong Technology and Development Co., Ltd.

Address

13F, Central Business Tower, No.88 Fuhua First Rd., Futian District, Shenzhen, Guangdong, China Shenzhen Guangdong CN 518000

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.