Who owns MAC prefix 70B3D5B1A?

70B3D5B1A is registered to Aaronia AG in the IEEE MA-S registry.

What devices use 70B3D5B1A?

Any network device with a MAC address starting 70:B3:D5:B1:A was manufactured by or for Aaronia AG.

MA-S · OUI prefix

Aaronia AG

Any MAC address starting 70:B3:D5:B1:A is registered to Aaronia AG in DE.

OUI prefix	70B3D5B1A
Vendor	Aaronia AG
Registry	MA-S (36-bit, small block)
Country	DE
Example MAC	70:B3:D5:B1:A:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5B1A to Aaronia AG. 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:B1:A, it is Aaronia AG hardware.

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