Who owns MAC prefix A4ED439?

A4ED439 is registered to Heyuan intelligence technology CO.,Ltd in the IEEE MA-M registry.

What devices use A4ED439?

Any network device with a MAC address starting A4:ED:43:9 was manufactured by or for Heyuan intelligence technology CO.,Ltd.

MA-M · OUI prefix

Heyuan intelligence technology CO.,Ltd

Any MAC address starting A4:ED:43:9 is registered to Heyuan intelligence technology CO.,Ltd in CN.

OUI prefix	A4ED439
Vendor	Heyuan intelligence technology CO.,Ltd
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	A4:ED:43:9:00:00:00

What this means

The IEEE assigned the MA-M block A4ED439 to Heyuan intelligence technology 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 A4:ED:43:9, it is Heyuan intelligence technology CO.,Ltd hardware.

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