What this means
The IEEE assigned the MA-L block 70AF25 to Nishiyama Industry 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 70:AF:25, it is Nishiyama Industry Co.,LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 70AF25?
70AF25 is registered to Nishiyama Industry 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. Nishiyama Industry Co.,LTD.'s block covers 16,777,216 addresses.
What devices use 70AF25?
Any network device with a MAC address starting 70:AF:25 was manufactured by or for Nishiyama Industry Co.,LTD..