What this means
The IEEE assigned the MA-L block 289A4B to SteelSeries ApS. 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 28:9A:4B, it is SteelSeries ApS hardware.
Frequently Asked Questions
Who owns MAC prefix 289A4B?
289A4B is registered to SteelSeries ApS 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. SteelSeries ApS's block covers 16,777,216 addresses.
What devices use 289A4B?
Any network device with a MAC address starting 28:9A:4B was manufactured by or for SteelSeries ApS.