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.
Frequently Asked Questions
Who owns MAC prefix A4ED439?
A4ED439 is registered to Heyuan intelligence technology CO.,Ltd in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Heyuan intelligence technology CO.,Ltd's block covers 1,048,576 addresses.
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.