What this means
The IEEE assigned the MA-L block 68EFA8 to AutomationDirect.com. 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 68:EF:A8, it is AutomationDirect.com hardware.
Frequently Asked Questions
Who owns MAC prefix 68EFA8?
68EFA8 is registered to AutomationDirect.com 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. AutomationDirect.com's block covers 16,777,216 addresses.
What devices use 68EFA8?
Any network device with a MAC address starting 68:EF:A8 was manufactured by or for AutomationDirect.com.