What this means
The IEEE assigned the MA-L block 742857 to Mayfield 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 74:28:57, it is Mayfield Robotics hardware.
Frequently Asked Questions
Who owns MAC prefix 742857?
742857 is registered to Mayfield 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. Mayfield Robotics's block covers 16,777,216 addresses.
What devices use 742857?
Any network device with a MAC address starting 74:28:57 was manufactured by or for Mayfield Robotics.