What this means
The IEEE assigned the MA-L block 78593E to RAFI GmbH & Co.KG. 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 78:59:3E, it is RAFI GmbH & Co.KG hardware.
Frequently Asked Questions
Who owns MAC prefix 78593E?
78593E is registered to RAFI GmbH & Co.KG 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. RAFI GmbH & Co.KG's block covers 16,777,216 addresses.
What devices use 78593E?
Any network device with a MAC address starting 78:59:3E was manufactured by or for RAFI GmbH & Co.KG.