What this means
The IEEE assigned the MA-L block 0025B6 to Telecom FM. 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:B6, it is Telecom FM hardware.
Frequently Asked Questions
Who owns MAC prefix 0025B6?
0025B6 is registered to Telecom FM 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. Telecom FM's block covers 16,777,216 addresses.
What devices use 0025B6?
Any network device with a MAC address starting 00:25:B6 was manufactured by or for Telecom FM.