What this means
The IEEE assigned the MA-L block 4427F3 to 70mai 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 44:27:F3, it is 70mai Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 4427F3?
4427F3 is registered to 70mai 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. 70mai Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 4427F3?
Any network device with a MAC address starting 44:27:F3 was manufactured by or for 70mai Co.,Ltd..