Hangzhou Konke Technology Co.,Ltd.

Any device whose MAC address begins with 28:D9:8A has a network interface built by Hangzhou Konke Technology 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

28:D9:8A

Organization

Hangzhou Konke Technology Co.,Ltd.

Address

Hangzhou cuibai road 7, ROOM 422 Hangzhou Zhejiang CN 310012

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.