Konze System Technology Co.,Ltd.

Any device whose MAC address begins with 28:02:45 has a network interface built by Konze System 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

28:02:45

Organization

Konze System Technology Co.,Ltd.

Address

4F., No.134, Ln. 235, Baoqiao Rd., Xindian Dist. New Taipei City --- TW 231

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.