Who owns MAC prefix 70B3D5AA9?

70B3D5AA9 is registered to Datamars SA in the IEEE MA-S registry.

What devices use 70B3D5AA9?

Any network device with a MAC address starting 70:B3:D5:AA:9 was manufactured by or for Datamars SA.

MA-S · OUI prefix

Datamars SA

Any MAC address starting 70:B3:D5:AA:9 is registered to Datamars SA in CH.

OUI prefix	70B3D5AA9
Vendor	Datamars SA
Registry	MA-S (36-bit, small block)
Country	CH
Example MAC	70:B3:D5:AA:9:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5AA9 to Datamars SA. 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:AA:9, it is Datamars SA hardware.

Look up another MAC