Who owns MAC prefix 70B3D5B7B?

70B3D5B7B is registered to Doosan Digital Innovation America in the IEEE MA-S registry.

What devices use 70B3D5B7B?

Any network device with a MAC address starting 70:B3:D5:B7:B was manufactured by or for Doosan Digital Innovation America.

MA-S · OUI prefix

Doosan Digital Innovation America

Any MAC address starting 70:B3:D5:B7:B is registered to Doosan Digital Innovation America in US.

OUI prefix	70B3D5B7B
Vendor	Doosan Digital Innovation America
Registry	MA-S (36-bit, small block)
Country	US
Example MAC	70:B3:D5:B7:B:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5B7B to Doosan Digital Innovation America. 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:B7:B, it is Doosan Digital Innovation America hardware.

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