Who owns MAC prefix 9C47F9?

9C47F9 is registered to LJU Automatisierungstechnik GmbH in the IEEE MA-L registry.

What devices use 9C47F9?

Any network device with a MAC address starting 9C:47:F9 was manufactured by or for LJU Automatisierungstechnik GmbH.

MA-L · OUI prefix

LJU Automatisierungstechnik GmbH

Any MAC address starting 9C:47:F9 is registered to LJU Automatisierungstechnik GmbH in DE.

OUI prefix	9C47F9
Vendor	LJU Automatisierungstechnik GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	9C:47:F9:00:00:00

What this means

The IEEE assigned the MA-L block 9C47F9 to LJU Automatisierungstechnik GmbH. 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:47:F9, it is LJU Automatisierungstechnik GmbH hardware.

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