Semptian Co., Ltd.

Any device whose MAC address begins with 00:28:9F has a network interface built by Semptian 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

00:28:9F

Organization

Semptian Co., Ltd.

Address

Block 5D, 8/F, Software Industry Park, No.14, Haitian 2nd Road, GaoxinSouth, Nanshan District, Shenzhen, China Shen Zhen GuangDong CN 518061

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.