What this means
The IEEE assigned the MA-L block 84C2E4 to Jiangsu Qinheng 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 84:C2:E4, it is Jiangsu Qinheng Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 84C2E4?
84C2E4 is registered to Jiangsu Qinheng 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 Qinheng Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 84C2E4?
Any network device with a MAC address starting 84:C2:E4 was manufactured by or for Jiangsu Qinheng Co., Ltd..