Smak Tecnologia e Automacao

Any device whose MAC address begins with AC:9B:84 has a network interface built by Smak Tecnologia e Automacao. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

AC:9B:84

Organization

Smak Tecnologia e Automacao

Address

Av. Sto. Antonio, 201 - Bela Vista Osasco São Paulo BR CEP 06086-075

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.