Who owns MAC prefix 70B3D5181?

70B3D5181 is registered to Task Sistemas in the IEEE MA-S registry.

What devices use 70B3D5181?

Any network device with a MAC address starting 70:B3:D5:18:1 was manufactured by or for Task Sistemas.

MA-S · OUI prefix

Task Sistemas

Any MAC address starting 70:B3:D5:18:1 is registered to Task Sistemas in BR.

OUI prefix	70B3D5181
Vendor	Task Sistemas
Registry	MA-S (36-bit, small block)
Country	BR
Example MAC	70:B3:D5:18:1:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5181 to Task Sistemas. 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:D5:18:1, it is Task Sistemas hardware.

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