Ulterius Technologies, LLC

Any device whose MAC address begins with 54:DF:00 has a network interface built by Ulterius Technologies, LLC. 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:DF:00

Organization

Ulterius Technologies, LLC

Address

1625 N. Waterfront Parkway Wichita KS US 67206

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.