Who owns MAC prefix 349D90?

349D90 is registered to Heinzmann GmbH & CO. KG in the IEEE MA-L registry.

What devices use 349D90?

Any network device with a MAC address starting 34:9D:90 was manufactured by or for Heinzmann GmbH & CO. KG.

MA-L · OUI prefix

Heinzmann GmbH & CO. KG

Any MAC address starting 34:9D:90 is registered to Heinzmann GmbH & CO. KG in DE.

OUI prefix	349D90
Vendor	Heinzmann GmbH & CO. KG
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	34:9D:90:00:00:00

What this means

The IEEE assigned the MA-L block 349D90 to Heinzmann GmbH & CO. KG. 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 34:9D:90, it is Heinzmann GmbH & CO. KG hardware.

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