Who owns MAC prefix 8C1F645F5?

8C1F645F5 is registered to HongSeok Ltd. in the IEEE MA-S registry.

What devices use 8C1F645F5?

Any network device with a MAC address starting 8C:1F:64:5F:5 was manufactured by or for HongSeok Ltd..

MA-S · OUI prefix

HongSeok Ltd.

Any MAC address starting 8C:1F:64:5F:5 is registered to HongSeok Ltd. in KR.

OUI prefix	8C1F645F5
Vendor	HongSeok Ltd.
Registry	MA-S (36-bit, small block)
Country	KR
Example MAC	8C:1F:64:5F:5:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F645F5 to HongSeok 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:64:5F:5, it is HongSeok Ltd. hardware.

Other HongSeok Ltd. prefixes

HongSeok Ltd. holds 3 registered blocks in total.

70B3D530A 70B3D5C40

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