What this means
The IEEE assigned the MA-L block 90E0F0 to IEEE 1722a Working Group. 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:E0:F0, it is IEEE 1722a Working Group hardware.
Frequently Asked Questions
Who owns MAC prefix 90E0F0?
90E0F0 is registered to IEEE 1722a Working Group 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. IEEE 1722a Working Group's block covers 16,777,216 addresses.
What devices use 90E0F0?
Any network device with a MAC address starting 90:E0:F0 was manufactured by or for IEEE 1722a Working Group.