Who owns MAC prefix AC4FFC?

AC4FFC is registered to SVS-VISTEK GmbH in the IEEE MA-L registry.

What devices use AC4FFC?

Any network device with a MAC address starting AC:4F:FC was manufactured by or for SVS-VISTEK GmbH.

MA-L · OUI prefix

SVS-VISTEK GmbH

Any MAC address starting AC:4F:FC is registered to SVS-VISTEK GmbH in DE.

OUI prefix	AC4FFC
Vendor	SVS-VISTEK GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	AC:4F:FC:00:00:00

What this means

The IEEE assigned the MA-L block AC4FFC to SVS-VISTEK 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 AC:4F:FC, it is SVS-VISTEK GmbH hardware.

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