Who owns MAC prefix 70B3D5B50?

70B3D5B50 is registered to iGrid T&D in the IEEE MA-S registry.

What devices use 70B3D5B50?

Any network device with a MAC address starting 70:B3:D5:B5:0 was manufactured by or for iGrid T&D.

MA-S · OUI prefix

iGrid T&D

Any MAC address starting 70:B3:D5:B5:0 is registered to iGrid T&D in ES.

OUI prefix	70B3D5B50
Vendor	iGrid T&D
Registry	MA-S (36-bit, small block)
Country	ES
Example MAC	70:B3:D5:B5:0:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5B50 to iGrid T&D. 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:B5:0, it is iGrid T&D hardware.

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