What this means
The IEEE assigned the MA-L block C477AB to Beijing ASU Tech 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 C4:77:AB, it is Beijing ASU Tech Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix C477AB?
C477AB is registered to Beijing ASU Tech 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. Beijing ASU Tech Co.,Ltd's block covers 16,777,216 addresses.
What devices use C477AB?
Any network device with a MAC address starting C4:77:AB was manufactured by or for Beijing ASU Tech Co.,Ltd.