Who owns MAC prefix 309E1D?

309E1D is registered to OHSUNG in the IEEE MA-L registry.

What devices use 309E1D?

Any network device with a MAC address starting 30:9E:1D was manufactured by or for OHSUNG.

MA-L · OUI prefix

OHSUNG

Any MAC address starting 30:9E:1D is registered to OHSUNG in KR.

OUI prefix	309E1D
Vendor	OHSUNG
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	30:9E:1D:00:00:00

What this means

The IEEE assigned the MA-L block 309E1D to OHSUNG. 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 30:9E:1D, it is OHSUNG hardware.

Other OHSUNG prefixes

OHSUNG holds 16 registered blocks in total.

14CF8D 1C3929 343E25 4892C1 68966A 749EA5 98EF9B 98F5A9 B814DB C8DD6A D01B1F D4FF26 all 16 »

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