BYD Precision Manufacture Co.,Ltd

Any device whose MAC address begins with 90:20:3A has a network interface built by BYD Precision Manufacture 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

90:20:3A

Organization

BYD Precision Manufacture Co.,Ltd

Address

Building 23#，NO.3009 BYD Road，Pingshan Shenzhen Guangdong CN 518118

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.