USA 111 Inc

Any device whose MAC address begins with A8:D4:09 has a network interface built by USA 111 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

A8:D4:09

Organization

USA 111 Inc

Address

5885 Green Pointe Dr. Suite B Groveport, OH 43125 Groveport Ohio US 43125

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.