Shanghai Linkyum Microeletronics Co.,Ltd

Any device whose MAC address begins with D4:B6:80 has a network interface built by Shanghai Linkyum Microeletronics 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:B6:80

Organization

Shanghai Linkyum Microeletronics Co.,Ltd

Address

Building 1, No.5500, Yuanjiang Road, Minhang District Shanghai Shanghai CN 201101

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.