Who owns MAC prefix D420001?

D420001 is registered to Zelus(HuangZhou) Technology Ltd. in the IEEE MA-M registry.

What devices use D420001?

Any network device with a MAC address starting D4:20:00:1 was manufactured by or for Zelus(HuangZhou) Technology Ltd..

MA-M · OUI prefix

Zelus(HuangZhou) Technology Ltd.

Any MAC address starting D4:20:00:1 is registered to Zelus(HuangZhou) Technology Ltd. in CN.

OUI prefix	D420001
Vendor	Zelus(HuangZhou) Technology Ltd.
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	D4:20:00:1:00:00:00

What this means

The IEEE assigned the MA-M block D420001 to Zelus(HuangZhou) Technology 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 D4:20:00:1, it is Zelus(HuangZhou) Technology Ltd. hardware.

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