What this means
The IEEE assigned the MA-L block 402230 to Shenzhen SuperElectron 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 40:22:30, it is Shenzhen SuperElectron Technology Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 402230?
402230 is registered to Shenzhen SuperElectron 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. Shenzhen SuperElectron Technology Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 402230?
Any network device with a MAC address starting 40:22:30 was manufactured by or for Shenzhen SuperElectron Technology Co.,Ltd..