BAE Systems

Any device whose MAC address begins with 18:F9:C4 has a network interface built by BAE Systems. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

18:F9:C4

Organization

BAE Systems

Address

21 continental boulevard Merrimack NH US 03054

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.