Guangzhou Punp Electronics Manufacturing Co., Ltd.

Any device whose MAC address begins with B0:7A:A4 has a network interface built by Guangzhou Punp Electronics Manufacturing 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

B0:7A:A4

Organization

Guangzhou Punp Electronics Manufacturing Co., Ltd.

Address

No. 20 Qianfeng South Road, Panyu District Guangzhou Guangdong CN 511450

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.