Who owns MAC prefix 9812B7?

9812B7 is registered to KARST.AI in the IEEE MA-L registry.

What devices use 9812B7?

Any network device with a MAC address starting 98:12:B7 was manufactured by or for KARST.AI.

MA-L · OUI prefix

KARST.AI

Any MAC address starting 98:12:B7 is registered to KARST.AI in SG.

OUI prefix	9812B7
Vendor	KARST.AI
Registry	MA-L (24-bit, large block)
Country	SG
Example MAC	98:12:B7:00:00:00

What this means

The IEEE assigned the MA-L block 9812B7 to KARST.AI. 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 98:12:B7, it is KARST.AI hardware.

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