First International Computer do Brasil

Any device whose MAC address begins with 00:12:9D has a network interface built by First International Computer do Brasil. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:12:9D

Organization

First International Computer do Brasil

Address

Rodovia BR 459 Santa Rita do Sapucaí Minas Gerais BR

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.