Who owns MAC prefix 40CA63?

40CA63 is registered to Seongji Industry Company in the IEEE MA-L registry.

What devices use 40CA63?

Any network device with a MAC address starting 40:CA:63 was manufactured by or for Seongji Industry Company.

MA-L · OUI prefix

Seongji Industry Company

Any MAC address starting 40:CA:63 is registered to Seongji Industry Company in KR.

OUI prefix	40CA63
Vendor	Seongji Industry Company
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	40:CA:63:00:00:00

What this means

The IEEE assigned the MA-L block 40CA63 to Seongji Industry Company. 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 40:CA:63, it is Seongji Industry Company hardware.

Other Seongji Industry Company prefixes

Seongji Industry Company holds 2 registered blocks in total.

88571D

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