Who owns MAC prefix 70B3D5DB8?

70B3D5DB8 is registered to SISTEM SA in the IEEE MA-S registry.

What devices use 70B3D5DB8?

Any network device with a MAC address starting 70:B3:D5:DB:8 was manufactured by or for SISTEM SA.

MA-S · OUI prefix

SISTEM SA

Any MAC address starting 70:B3:D5:DB:8 is registered to SISTEM SA in ES.

OUI prefix	70B3D5DB8
Vendor	SISTEM SA
Registry	MA-S (36-bit, small block)
Country	ES
Example MAC	70:B3:D5:DB:8:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5DB8 to SISTEM 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:DB:8, it is SISTEM SA hardware.

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