Cianet Industria e Comercio S/A

Any device whose MAC address begins with 00:19:46 has a network interface built by Cianet Industria e Comercio S/A. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:19:46

Organization

Cianet Industria e Comercio S/A

Address

rod SC401, km01 Tecnopolis/Alfama 4o. Andar Florianopolis Santa Catarina BR 88030-902

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.