Hangzhou Ruiying technology co., LTD

Any device whose MAC address begins with 2C:28:B7 has a network interface built by Hangzhou Ruiying 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

2C:28:B7

Organization

Hangzhou Ruiying technology co., LTD

Address

No. 1, building 305, Yunqi Town Cloud Computing Industrial Park, Hangzhou City, Xihu District Hangzhou Zhejiang CN 310000

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.