High Grade Controls Corporation

Any device whose MAC address begins with E0:84:F3 has a network interface built by High Grade Controls 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

E0:84:F3

Organization

High Grade Controls Corporation

Address

87 Magill Street Sudbury Ontario CA P3Y1K6

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.