What this means
The IEEE assigned the MA-L block 407AA4 to ZHEJIANG DAHUA TECHNOLOGYCO.,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 40:7A:A4, it is ZHEJIANG DAHUA TECHNOLOGYCO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 407AA4?
407AA4 is registered to ZHEJIANG DAHUA TECHNOLOGYCO.,LTD in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. ZHEJIANG DAHUA TECHNOLOGYCO.,LTD's block covers 16,777,216 addresses.
What devices use 407AA4?
Any network device with a MAC address starting 40:7A:A4 was manufactured by or for ZHEJIANG DAHUA TECHNOLOGYCO.,LTD.