SHENZHEN GONGJIN ELECTRONICS CO.,LT

Any device whose MAC address begins with B4:41:7A has a network interface built by SHENZHEN GONGJIN ELECTRONICS CO.,LT. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B4:41:7A

Organization

SHENZHEN GONGJIN ELECTRONICS CO.,LT

Address

4F,Baiying Building, No.1019,Nanhai RD,Shekou ShenZhen GuangDong CN 518067

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.