Shenzhen Lanfeng Times Industrial Co.,Ltd.

Any device whose MAC address begins with 40:DE:17 has a network interface built by Shenzhen Lanfeng Times Industrial 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

40:DE:17

Organization

Shenzhen Lanfeng Times Industrial Co.,Ltd.

Address

Introduction Building 6F,71 Xin’an Street, Baoan District Shenzhen Guangdong CN 518101

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.