Fortress Technology Inc

Any device whose MAC address begins with F8:99:55 has a network interface built by Fortress Technology 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

F8:99:55

Organization

Fortress Technology Inc

Address

51 Grand Marshall Drive Scarborough Ontario CA M1B 5N6

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.