Eagle Research Corporation

Any device whose MAC address begins with 54:81:AD has a network interface built by Eagle Research Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

54:81:AD

Organization

Eagle Research Corporation

Address

4237 State Route 34 Hurricane West Virginia US 25526

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.