Who owns MAC prefix 70B3D5859?

70B3D5859 is registered to HAN CHANG in the IEEE MA-S registry.

What devices use 70B3D5859?

Any network device with a MAC address starting 70:B3:D5:85:9 was manufactured by or for HAN CHANG.

MA-S · OUI prefix

HAN CHANG

Any MAC address starting 70:B3:D5:85:9 is registered to HAN CHANG in KR.

OUI prefix	70B3D5859
Vendor	HAN CHANG
Registry	MA-S (36-bit, small block)
Country	KR
Example MAC	70:B3:D5:85:9:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5859 to HAN CHANG. 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:D5:85:9, it is HAN CHANG hardware.

Other HAN CHANG prefixes

HAN CHANG holds 3 registered blocks in total.

70B3D5C3A D0CEC9

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