Smartisan Digital Co., Ltd

Any device whose MAC address begins with 34:D7:12 has a network interface built by Smartisan Digital 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

34:D7:12

Organization

Smartisan Digital Co., Ltd

Address

4F, China Digital Kingdom, No.1 Wangjing North Road, Chaoyang District Beijing Beijing CN 100012

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.