Who owns MAC prefix 28A192?

28A192 is registered to GERP Solution in the IEEE MA-L registry.

What devices use 28A192?

Any network device with a MAC address starting 28:A1:92 was manufactured by or for GERP Solution.

MA-L · OUI prefix

GERP Solution

Any MAC address starting 28:A1:92 is registered to GERP Solution in BR.

OUI prefix	28A192
Vendor	GERP Solution
Registry	MA-L (24-bit, large block)
Country	BR
Example MAC	28:A1:92:00:00:00

What this means

The IEEE assigned the MA-L block 28A192 to GERP Solution. 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 28:A1:92, it is GERP Solution hardware.

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