FRONTIER TECHNOLOGIES CORP.

Any device whose MAC address begins with 00:80:54 has a network interface built by FRONTIER TECHNOLOGIES CORP.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:80:54

Organization

FRONTIER TECHNOLOGIES CORP.

Address

10201 NO. PT. WASHINGTON ROAD MEQUON WI US 53092

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.