What this means
The IEEE assigned the MA-L block 0015F5 to Sustainable Energy Systems. 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 00:15:F5, it is Sustainable Energy Systems hardware.
Frequently Asked Questions
Who owns MAC prefix 0015F5?
0015F5 is registered to Sustainable Energy Systems 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. Sustainable Energy Systems's block covers 16,777,216 addresses.
What devices use 0015F5?
Any network device with a MAC address starting 00:15:F5 was manufactured by or for Sustainable Energy Systems.