Shenzhen Excelsecu Data Technology Co.,Ltd

Any device whose MAC address begins with C4:D4:96 has a network interface built by Shenzhen Excelsecu Data 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

C4:D4:96

Organization

Shenzhen Excelsecu Data Technology Co.,Ltd

Address

Unit 701-708,7/F,South Block,SDGI Building A, No.2,Kefeng Road,YueHai Street , Nanshan District, Shenzhen, China. Shenzhen CN 518057

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.