Who owns MAC prefix 8C1F640E3?

8C1F640E3 is registered to JISEONGENG Co,.LTD in the IEEE MA-S registry.

What devices use 8C1F640E3?

Any network device with a MAC address starting 8C:1F:64:0E:3 was manufactured by or for JISEONGENG Co,.LTD.

MA-S · OUI prefix

JISEONGENG Co,.LTD

Any MAC address starting 8C:1F:64:0E:3 is registered to JISEONGENG Co,.LTD in KR.

OUI prefix	8C1F640E3
Vendor	JISEONGENG Co,.LTD
Registry	MA-S (36-bit, small block)
Country	KR
Example MAC	8C:1F:64:0E:3:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F640E3 to JISEONGENG 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 8C:1F:64:0E:3, it is JISEONGENG Co,.LTD hardware.

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