Guoguang Electric Co.,Ltd

Any device whose MAC address begins with E8:09:59 has a network interface built by Guoguang Electric 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

E8:09:59

Organization

Guoguang Electric Co.,Ltd

Address

No.8 Jinghu Road, Xinhua Street, Huadu Reg Guangzhou Guangdong CN 510800

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.