What this means
The IEEE assigned the MA-L block 902778 to Open Infrastructure. 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 90:27:78, it is Open Infrastructure hardware.
Frequently Asked Questions
Who owns MAC prefix 902778?
902778 is registered to Open Infrastructure 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. Open Infrastructure's block covers 16,777,216 addresses.
What devices use 902778?
Any network device with a MAC address starting 90:27:78 was manufactured by or for Open Infrastructure.