Who owns MAC prefix 5043B9?

5043B9 is registered to OktoInform RUS in the IEEE MA-L registry.

What devices use 5043B9?

Any network device with a MAC address starting 50:43:B9 was manufactured by or for OktoInform RUS.

MA-L · OUI prefix

OktoInform RUS

Any MAC address starting 50:43:B9 is registered to OktoInform RUS in RU.

OUI prefix	5043B9
Vendor	OktoInform RUS
Registry	MA-L (24-bit, large block)
Country	RU
Example MAC	50:43:B9:00:00:00

What this means

The IEEE assigned the MA-L block 5043B9 to OktoInform RUS. 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 50:43:B9, it is OktoInform RUS hardware.

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