Who owns MAC prefix 70B3D59DE?

70B3D59DE is registered to System 11 Sp. z o.o. in the IEEE MA-S registry.

What devices use 70B3D59DE?

Any network device with a MAC address starting 70:B3:D5:9D:E was manufactured by or for System 11 Sp. z o.o..

MA-S · OUI prefix

System 11 Sp. z o.o.

Any MAC address starting 70:B3:D5:9D:E is registered to System 11 Sp. z o.o. in PL.

OUI prefix	70B3D59DE
Vendor	System 11 Sp. z o.o.
Registry	MA-S (36-bit, small block)
Country	PL
Example MAC	70:B3:D5:9D:E:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D59DE to System 11 Sp. z o.o.. 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:D5:9D:E, it is System 11 Sp. z o.o. hardware.

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