What this means
The IEEE assigned the MA-L block 90FB93 to Renesas Design US Inc.. 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 90:FB:93, it is Renesas Design US Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 90FB93?
90FB93 is registered to Renesas Design US Inc. 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. Renesas Design US Inc.'s block covers 16,777,216 addresses.
What devices use 90FB93?
Any network device with a MAC address starting 90:FB:93 was manufactured by or for Renesas Design US Inc..