Who owns MAC prefix 70B3D5D80?

70B3D5D80 is registered to AMMT GmbH in the IEEE MA-S registry.

What devices use 70B3D5D80?

Any network device with a MAC address starting 70:B3:D5:D8:0 was manufactured by or for AMMT GmbH.

MA-S · OUI prefix

AMMT GmbH

Any MAC address starting 70:B3:D5:D8:0 is registered to AMMT GmbH in DE.

OUI prefix	70B3D5D80
Vendor	AMMT GmbH
Registry	MA-S (36-bit, small block)
Country	DE
Example MAC	70:B3:D5:D8:0:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5D80 to AMMT GmbH. 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:D8:0, it is AMMT GmbH hardware.

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