Realfit(Shenzhen) Intelligent Technology Co., Ltd

Any device whose MAC address begins with 14:3B:42 has a network interface built by Realfit(Shenzhen) 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

14:3B:42

Organization

Realfit(Shenzhen) Intelligent Technology Co., Ltd

Address

Room 201, building a, No.1 Qianwan 1st Road, Shenzhen Hong Kong cooperation zone, Qianhai Shenzhen Guangdong CN 518000

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.