Who owns MAC prefix 70B3D542C?

70B3D542C is registered to D.Marchiori Srl in the IEEE MA-S registry.

What devices use 70B3D542C?

Any network device with a MAC address starting 70:B3:D5:42:C was manufactured by or for D.Marchiori Srl.

MA-S · OUI prefix

D.Marchiori Srl

Any MAC address starting 70:B3:D5:42:C is registered to D.Marchiori Srl in IT.

OUI prefix	70B3D542C
Vendor	D.Marchiori Srl
Registry	MA-S (36-bit, small block)
Country	IT
Example MAC	70:B3:D5:42:C:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D542C to D.Marchiori Srl. 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:D5:42:C, it is D.Marchiori Srl hardware.

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