What this means
The IEEE assigned the MA-L block 405EE1 to Shenzhen H&T Intelligent Control 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 40:5E:E1, it is Shenzhen H&T Intelligent Control Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 405EE1?
405EE1 is registered to Shenzhen H&T Intelligent Control Co.,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. Shenzhen H&T Intelligent Control Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 405EE1?
Any network device with a MAC address starting 40:5E:E1 was manufactured by or for Shenzhen H&T Intelligent Control Co.,Ltd..