Who owns MAC prefix 1C21D12?

1C21D12 is registered to Varaani Works Oy in the IEEE MA-M registry.

What devices use 1C21D12?

Any network device with a MAC address starting 1C:21:D1:2 was manufactured by or for Varaani Works Oy.

MA-M · OUI prefix

Varaani Works Oy

Any MAC address starting 1C:21:D1:2 is registered to Varaani Works Oy in FI.

OUI prefix	1C21D12
Vendor	Varaani Works Oy
Registry	MA-M (28-bit, medium block)
Country	FI
Example MAC	1C:21:D1:2:00:00:00

What this means

The IEEE assigned the MA-M block 1C21D12 to Varaani Works 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 1C:21:D1:2, it is Varaani Works Oy hardware.

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