Who owns MAC prefix C4F5A5?

C4F5A5 is registered to Kumalift Co., Ltd. in the IEEE MA-L registry.

What devices use C4F5A5?

Any network device with a MAC address starting C4:F5:A5 was manufactured by or for Kumalift Co., Ltd..

MA-L · OUI prefix

Kumalift Co., Ltd.

Any MAC address starting C4:F5:A5 is registered to Kumalift Co., Ltd. in JP.

OUI prefix	C4F5A5
Vendor	Kumalift Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	C4:F5:A5:00:00:00

What this means

The IEEE assigned the MA-L block C4F5A5 to Kumalift Co., Ltd.. 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 C4:F5:A5, it is Kumalift Co., Ltd. hardware.

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