Who owns MAC prefix 3C427E4?

3C427E4 is registered to Teknoware Oy in the IEEE MA-M registry.

What devices use 3C427E4?

Any network device with a MAC address starting 3C:42:7E:4 was manufactured by or for Teknoware Oy.

MA-M · OUI prefix

Teknoware Oy

Any MAC address starting 3C:42:7E:4 is registered to Teknoware Oy in FI.

OUI prefix	3C427E4
Vendor	Teknoware Oy
Registry	MA-M (28-bit, medium block)
Country	FI
Example MAC	3C:42:7E:4:00:00:00

What this means

The IEEE assigned the MA-M block 3C427E4 to Teknoware 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 3C:42:7E:4, it is Teknoware Oy hardware.

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