What this means
The IEEE assigned the MA-L block 1083B4 to Sidora Srl. 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 10:83:B4, it is Sidora Srl hardware.
Frequently Asked Questions
Who owns MAC prefix 1083B4?
1083B4 is registered to Sidora Srl 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. Sidora Srl's block covers 16,777,216 addresses.
What devices use 1083B4?
Any network device with a MAC address starting 10:83:B4 was manufactured by or for Sidora Srl.