What this means
The IEEE assigned the MA-L block E4FF69 to Holiday Robotics. 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 E4:FF:69, it is Holiday Robotics hardware.
Frequently Asked Questions
Who owns MAC prefix E4FF69?
E4FF69 is registered to Holiday Robotics 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. Holiday Robotics's block covers 16,777,216 addresses.
What devices use E4FF69?
Any network device with a MAC address starting E4:FF:69 was manufactured by or for Holiday Robotics.