ISE Europe SPRL

Any device whose MAC address begins with 40:F1:4C has a network interface built by ISE Europe SPRL. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

40:F1:4C

Organization

ISE Europe SPRL

Address

Fauvette 1 Uccle BE 1180

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.