Who owns MAC prefix 803B9A?

803B9A is registered to ghe-ces electronic ag in the IEEE MA-L registry.

What devices use 803B9A?

Any network device with a MAC address starting 80:3B:9A was manufactured by or for ghe-ces electronic ag.

MA-L · OUI prefix

ghe-ces electronic ag

Any MAC address starting 80:3B:9A is registered to ghe-ces electronic ag in CH.

OUI prefix	803B9A
Vendor	ghe-ces electronic ag
Registry	MA-L (24-bit, large block)
Country	CH
Example MAC	80:3B:9A:00:00:00

What this means

The IEEE assigned the MA-L block 803B9A to ghe-ces electronic ag. 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 80:3B:9A, it is ghe-ces electronic ag hardware.

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