Tianjin Zanpu Technology Inc.

Any device whose MAC address begins with F4:E9:26 has a network interface built by Tianjin Zanpu Technology Inc.. 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:E9:26

Organization

Tianjin Zanpu Technology Inc.

Address

3F Haiyi International Center, Huayuan Industrial Park, Tianjin Tianjin Tianjin CN 300384

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.