What this means
The IEEE assigned the MA-L block 0025FA to J&M Analytik AG. 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 00:25:FA, it is J&M Analytik AG hardware.
Frequently Asked Questions
Who owns MAC prefix 0025FA?
0025FA is registered to J&M Analytik AG 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. J&M Analytik AG's block covers 16,777,216 addresses.
What devices use 0025FA?
Any network device with a MAC address starting 00:25:FA was manufactured by or for J&M Analytik AG.