Who owns MAC prefix C0188C?

C0188C is registered to Altus Sistemas de Automação S.A. in the IEEE MA-L registry.

What devices use C0188C?

Any network device with a MAC address starting C0:18:8C was manufactured by or for Altus Sistemas de Automação S.A..

MA-L · OUI prefix

Altus Sistemas de Automação S.A.

Any MAC address starting C0:18:8C is registered to Altus Sistemas de Automação S.A. in BR.

OUI prefix	C0188C
Vendor	Altus Sistemas de Automação S.A.
Registry	MA-L (24-bit, large block)
Country	BR
Example MAC	C0:18:8C:00:00:00

What this means

The IEEE assigned the MA-L block C0188C to Altus Sistemas de Automação S.A.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting C0:18:8C, it is Altus Sistemas de Automação S.A. hardware.

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