Who owns MAC prefix 309C23?

309C23 is registered to Micro-Star INTL CO., LTD. in the IEEE MA-L registry.

What devices use 309C23?

Any network device with a MAC address starting 30:9C:23 was manufactured by or for Micro-Star INTL CO., LTD..

MA-L · OUI prefix

Micro-Star INTL CO., LTD.

Any MAC address starting 30:9C:23 is registered to Micro-Star INTL CO., LTD. in TW.

OUI prefix	309C23
Vendor	Micro-Star INTL CO., LTD.
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	30:9C:23:00:00:00

What this means

The IEEE assigned the MA-L block 309C23 to Micro-Star INTL CO., LTD.. 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 30:9C:23, it is Micro-Star INTL CO., LTD. hardware.

Other Micro-Star INTL CO., LTD. prefixes

Micro-Star INTL CO., LTD. holds 10 registered blocks in total.

00D861 047C16 2CF05D 345A60 4CCC6A D843AE D8BBC1 D8CB8A FC9D05

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