O-Net Communications (Shenzhen) Limited

Any device whose MAC address begins with 34:78:77 has a network interface built by O-Net Communications (Shenzhen) Limited. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

34:78:77

Organization

O-Net Communications (Shenzhen) Limited

Address

#10-1 South,Maqueling Industrial Park,Nanshan District Shenzhen Guangdong 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.