Who owns MAC prefix 000543?

000543 is registered to IQ Wireless GmbH in the IEEE MA-L registry.

What devices use 000543?

Any network device with a MAC address starting 00:05:43 was manufactured by or for IQ Wireless GmbH.

MA-L · OUI prefix

IQ Wireless GmbH

Any MAC address starting 00:05:43 is registered to IQ Wireless GmbH in DE.

OUI prefix	000543
Vendor	IQ Wireless GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	00:05:43:00:00:00

What this means

The IEEE assigned the MA-L block 000543 to IQ Wireless 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 00:05:43, it is IQ Wireless GmbH hardware.

Look up another MAC