What this means
The IEEE assigned the MA-L block 40E171 to Jiangsu Huitong Group 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:E1:71, it is Jiangsu Huitong Group Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 40E171?
40E171 is registered to Jiangsu Huitong Group 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. Jiangsu Huitong Group Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 40E171?
Any network device with a MAC address starting 40:E1:71 was manufactured by or for Jiangsu Huitong Group Co.,Ltd..