Who owns MAC prefix 78AF58?

78AF58 is registered to GIMASI SA in the IEEE MA-L registry.

What devices use 78AF58?

Any network device with a MAC address starting 78:AF:58 was manufactured by or for GIMASI SA.

MA-L · OUI prefix

GIMASI SA

Any MAC address starting 78:AF:58 is registered to GIMASI SA in CH.

OUI prefix	78AF58
Vendor	GIMASI SA
Registry	MA-L (24-bit, large block)
Country	CH
Example MAC	78:AF:58:00:00:00

What this means

The IEEE assigned the MA-L block 78AF58 to GIMASI SA. 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 78:AF:58, it is GIMASI SA hardware.

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