Who owns MAC prefix B48547?

B48547 is registered to Amptown System Company GmbH in the IEEE MA-L registry.

What devices use B48547?

Any network device with a MAC address starting B4:85:47 was manufactured by or for Amptown System Company GmbH.

MA-L · OUI prefix

Amptown System Company GmbH

Any MAC address starting B4:85:47 is registered to Amptown System Company GmbH in DE.

OUI prefix	B48547
Vendor	Amptown System Company GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	B4:85:47:00:00:00

What this means

The IEEE assigned the MA-L block B48547 to Amptown System Company GmbH. 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 B4:85:47, it is Amptown System Company GmbH hardware.

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