Who owns MAC prefix A0C5F22?

A0C5F22 is registered to Speedgoat GmbH in the IEEE MA-M registry.

What devices use A0C5F22?

Any network device with a MAC address starting A0:C5:F2:2 was manufactured by or for Speedgoat GmbH.

MA-M · OUI prefix

Speedgoat GmbH

Any MAC address starting A0:C5:F2:2 is registered to Speedgoat GmbH in CH.

OUI prefix	A0C5F22
Vendor	Speedgoat GmbH
Registry	MA-M (28-bit, medium block)
Country	CH
Example MAC	A0:C5:F2:2:00:00:00

What this means

The IEEE assigned the MA-M block A0C5F22 to Speedgoat 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 A0:C5:F2:2, it is Speedgoat GmbH hardware.

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