FIRST INTERNAT'L COMPUTER, INC

Any device whose MAC address begins with 00:40:CA has a network interface built by FIRST INTERNAT'L COMPUTER, 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

00:40:CA

Organization

FIRST INTERNAT'L COMPUTER, INC

Address

FIC Building Neihu Taipei 114 TW Taipei 114

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.