Ubiquiti Inc

Any device whose MAC address begins with A4:F8:FF has a network interface built by Ubiquiti 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

A4:F8:FF

Organization

Ubiquiti Inc

Address

685 Third Avenue, 27th Floor New York NY US New York NY 10017

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.