Who owns MAC prefix 000566?

000566 is registered to Secui.com Corporation in the IEEE MA-L registry.

What devices use 000566?

Any network device with a MAC address starting 00:05:66 was manufactured by or for Secui.com Corporation.

MA-L · OUI prefix

Secui.com Corporation

Any MAC address starting 00:05:66 is registered to Secui.com Corporation in KR.

OUI prefix	000566
Vendor	Secui.com Corporation
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	00:05:66:00:00:00

What this means

The IEEE assigned the MA-L block 000566 to Secui.com Corporation. 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 00:05:66, it is Secui.com Corporation hardware.

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