Who owns MAC prefix 70B3D5EC4?

70B3D5EC4 is registered to hmt telematik GmbH in the IEEE MA-S registry.

What devices use 70B3D5EC4?

Any network device with a MAC address starting 70:B3:D5:EC:4 was manufactured by or for hmt telematik GmbH.

MA-S · OUI prefix

hmt telematik GmbH

Any MAC address starting 70:B3:D5:EC:4 is registered to hmt telematik GmbH in AT.

OUI prefix	70B3D5EC4
Vendor	hmt telematik GmbH
Registry	MA-S (36-bit, small block)
Country	AT
Example MAC	70:B3:D5:EC:4:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5EC4 to hmt telematik 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:EC:4, it is hmt telematik GmbH hardware.

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