Shenzhen Detran Technology Co.,Ltd.

Any device whose MAC address begins with D4:66:63 has a network interface built by Shenzhen Detran 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

D4:66:63

Organization

Shenzhen Detran Technology Co.,Ltd.

Address

201, F5 Building, TCL International E City, Zhongshanyuan Rd. Nanshan District Shenzhen Guangdong CN 518052

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.