Hangzhou Bianfeng Networking Technology Co., Ltd.

Any device whose MAC address begins with F4:06:A5 has a network interface built by Hangzhou Bianfeng Networking 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

F4:06:A5

Organization

Hangzhou Bianfeng Networking Technology Co., Ltd.

Address

BlockC，2F，Building B，Paradise Software Park 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.