Trópico Sistemas e Telecomunicações da Amazônia LTDA.

Any device whose MAC address begins with 00:1A:90 has a network interface built by Trópico Sistemas e Telecomunicações da Amazônia LTDA.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:1A:90

Organization

Trópico Sistemas e Telecomunicações da Amazônia LTDA.

Address

Rod. Campinas-Mogi-Mirim (SP 340) Km 118,5 Campinas São Paulo BR 13.086-902

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.