What this means
The IEEE assigned the MA-L block 4C4576 to China Mobile(Hangzhou) Information 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 4C:45:76, it is China Mobile(Hangzhou) Information Technology Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 4C4576?
4C4576 is registered to China Mobile(Hangzhou) Information 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. China Mobile(Hangzhou) Information Technology Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 4C4576?
Any network device with a MAC address starting 4C:45:76 was manufactured by or for China Mobile(Hangzhou) Information Technology Co.,Ltd..