Who owns MAC prefix 28ED58?

28ED58 is registered to JAG Jakob AG in the IEEE MA-L registry.

What devices use 28ED58?

Any network device with a MAC address starting 28:ED:58 was manufactured by or for JAG Jakob AG.

MA-L · OUI prefix

JAG Jakob AG

Any MAC address starting 28:ED:58 is registered to JAG Jakob AG in CH.

OUI prefix	28ED58
Vendor	JAG Jakob AG
Registry	MA-L (24-bit, large block)
Country	CH
Example MAC	28:ED:58:00:00:00

What this means

The IEEE assigned the MA-L block 28ED58 to JAG Jakob 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 28:ED:58, it is JAG Jakob AG hardware.

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