Who owns MAC prefix 305D38?

305D38 is registered to Beissbarth in the IEEE MA-L registry.

What devices use 305D38?

Any network device with a MAC address starting 30:5D:38 was manufactured by or for Beissbarth.

MA-L · OUI prefix

Beissbarth

Any MAC address starting 30:5D:38 is registered to Beissbarth in DE.

OUI prefix	305D38
Vendor	Beissbarth
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	30:5D:38:00:00:00

What this means

The IEEE assigned the MA-L block 305D38 to Beissbarth. 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 30:5D:38, it is Beissbarth hardware.

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