Shenzhen Zhongruixin Intelligent Technology Co., Ltd.

Any device whose MAC address begins with 74:20:5F has a network interface built by Shenzhen Zhongruixin Intelligent 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

74:20:5F

Organization

Shenzhen Zhongruixin Intelligent Technology Co., Ltd.

Address

Room 801, Block A, Nanyuan Commercial Building, Nanyuan New Village, Hongshan Community, Minzhi Street, Longhua District Shenzhen City Guangdong Province CN 518001

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.