Who owns MAC prefix 9C31B6?

9C31B6 is registered to Kulite Semiconductor Products Inc in the IEEE MA-L registry.

What devices use 9C31B6?

Any network device with a MAC address starting 9C:31:B6 was manufactured by or for Kulite Semiconductor Products Inc.

MA-L · OUI prefix

Kulite Semiconductor Products Inc

Any MAC address starting 9C:31:B6 is registered to Kulite Semiconductor Products Inc in US.

OUI prefix	9C31B6
Vendor	Kulite Semiconductor Products Inc
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	9C:31:B6:00:00:00

What this means

The IEEE assigned the MA-L block 9C31B6 to Kulite Semiconductor Products Inc. 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 9C:31:B6, it is Kulite Semiconductor Products Inc hardware.

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