Who owns MAC prefix 70B3D576B?

70B3D576B is registered to EMPELOR GmbH in the IEEE MA-S registry.

What devices use 70B3D576B?

Any network device with a MAC address starting 70:B3:D5:76:B was manufactured by or for EMPELOR GmbH.

MA-S · OUI prefix

EMPELOR GmbH

Any MAC address starting 70:B3:D5:76:B is registered to EMPELOR GmbH in CH.

OUI prefix	70B3D576B
Vendor	EMPELOR GmbH
Registry	MA-S (36-bit, small block)
Country	CH
Example MAC	70:B3:D5:76:B:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D576B to EMPELOR 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:D5:76:B, it is EMPELOR GmbH hardware.

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