What this means
The IEEE assigned the MA-L block B8C3BF to Henan Chengshi NetWork 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 B8:C3:BF, it is Henan Chengshi NetWork Technology Co.，Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix B8C3BF?
B8C3BF is registered to Henan Chengshi NetWork Technology 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. Henan Chengshi NetWork Technology Co.，Ltd's block covers 16,777,216 addresses.
What devices use B8C3BF?
Any network device with a MAC address starting B8:C3:BF was manufactured by or for Henan Chengshi NetWork Technology Co.，Ltd.