What this means
The IEEE assigned the MA-L block A84122 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 A8:41:22, it is China Mobile (Hangzhou) Information Technology Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix A84122?
A84122 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 A84122?
Any network device with a MAC address starting A8:41:22 was manufactured by or for China Mobile (Hangzhou) Information Technology Co.,Ltd..