What this means
The IEEE assigned the MA-L block 78257A to LEO Innovation Lab. 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 78:25:7A, it is LEO Innovation Lab hardware.
Frequently Asked Questions
Who owns MAC prefix 78257A?
78257A is registered to LEO Innovation Lab 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. LEO Innovation Lab's block covers 16,777,216 addresses.
What devices use 78257A?
Any network device with a MAC address starting 78:25:7A was manufactured by or for LEO Innovation Lab.