Who owns MAC prefix 9C3312?

9C3312 is registered to Treon Oy in the IEEE MA-L registry.

What devices use 9C3312?

Any network device with a MAC address starting 9C:33:12 was manufactured by or for Treon Oy.

MA-L · OUI prefix

Treon Oy

Any MAC address starting 9C:33:12 is registered to Treon Oy in FI.

OUI prefix	9C3312
Vendor	Treon Oy
Registry	MA-L (24-bit, large block)
Country	FI
Example MAC	9C:33:12:00:00:00

What this means

The IEEE assigned the MA-L block 9C3312 to Treon Oy. 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:33:12, it is Treon Oy hardware.

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