What devices use 000399?

Any network device with a MAC address starting 00:03:99 was manufactured by or for Dongju Informations & Communications Co., Ltd..

MA-L · OUI prefix

Dongju Informations & Communications Co., Ltd.

Q: Who owns MAC prefix 000399?

000399 is registered to Dongju Informations & Communications Co., Ltd. in the IEEE MA-L registry.

Any MAC address starting 00:03:99 is registered to Dongju Informations & Communications Co., Ltd. in KR.

OUI prefix	000399
Vendor	Dongju Informations & Communications Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	00:03:99:00:00:00

What this means

The IEEE assigned the MA-L block 000399 to Dongju Informations & Communications Co., Ltd.. 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 00:03:99, it is Dongju Informations & Communications Co., Ltd. hardware.

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