What this means
The IEEE assigned the MA-L block 903CAE to Yunnan KSEC Digital 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 90:3C:AE, it is Yunnan KSEC Digital Technology Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 903CAE?
903CAE is registered to Yunnan KSEC Digital 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. Yunnan KSEC Digital Technology Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 903CAE?
Any network device with a MAC address starting 90:3C:AE was manufactured by or for Yunnan KSEC Digital Technology Co.,Ltd..