What this means
The IEEE assigned the MA-L block A49F89 to Shanghai Rui Rui Communication 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 A4:9F:89, it is Shanghai Rui Rui Communication Technology Co.Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix A49F89?
A49F89 is registered to Shanghai Rui Rui Communication 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. Shanghai Rui Rui Communication Technology Co.Ltd.'s block covers 16,777,216 addresses.
What devices use A49F89?
Any network device with a MAC address starting A4:9F:89 was manufactured by or for Shanghai Rui Rui Communication Technology Co.Ltd..