Securifi Ltd

Any device whose MAC address begins with E4:71:85 has a network interface built by Securifi 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

E4:71:85

Organization

Securifi Ltd

Address

16F-3, #482 Zhongxiao E Rd, Sec 5 Taipei TW 11083

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.