Who owns MAC prefix F040AF0?

F040AF0 is registered to Colorlight Cloud Tech Ltd in the IEEE MA-M registry.

What devices use F040AF0?

Any network device with a MAC address starting F0:40:AF:0 was manufactured by or for Colorlight Cloud Tech Ltd.

MA-M · OUI prefix

Colorlight Cloud Tech Ltd

Any MAC address starting F0:40:AF:0 is registered to Colorlight Cloud Tech Ltd in CN.

OUI prefix	F040AF0
Vendor	Colorlight Cloud Tech Ltd
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	F0:40:AF:0:00:00:00

What this means

The IEEE assigned the MA-M block F040AF0 to Colorlight Cloud Tech 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 F0:40:AF:0, it is Colorlight Cloud Tech Ltd hardware.

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