Who owns MAC prefix 70B3D5D5F?

70B3D5D5F is registered to Core Balance Co., Ltd. in the IEEE MA-S registry.

What devices use 70B3D5D5F?

Any network device with a MAC address starting 70:B3:D5:D5:F was manufactured by or for Core Balance Co., Ltd..

MA-S · OUI prefix

Core Balance Co., Ltd.

Any MAC address starting 70:B3:D5:D5:F is registered to Core Balance Co., Ltd. in KR.

OUI prefix	70B3D5D5F
Vendor	Core Balance Co., Ltd.
Registry	MA-S (36-bit, small block)
Country	KR
Example MAC	70:B3:D5:D5:F:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5D5F to Core Balance 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 70:B3:D5:D5:F, it is Core Balance Co., Ltd. hardware.

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