What devices use 000504?

Any network device with a MAC address starting 00:05:04 was manufactured by or for Naray Information & Communication Enterprise.

MA-L · OUI prefix

Naray Information & Communication Enterprise

Q: Who owns MAC prefix 000504?

000504 is registered to Naray Information & Communication Enterprise in the IEEE MA-L registry.

Any MAC address starting 00:05:04 is registered to Naray Information & Communication Enterprise in KR.

OUI prefix	000504
Vendor	Naray Information & Communication Enterprise
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	00:05:04:00:00:00

What this means

The IEEE assigned the MA-L block 000504 to Naray Information & Communication Enterprise. 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 00:05:04, it is Naray Information & Communication Enterprise hardware.

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