Who owns MAC prefix 70B3D5A20?

70B3D5A20 is registered to Design For Life Systems in the IEEE MA-S registry.

What devices use 70B3D5A20?

Any network device with a MAC address starting 70:B3:D5:A2:0 was manufactured by or for Design For Life Systems.

MA-S · OUI prefix

Design For Life Systems

Any MAC address starting 70:B3:D5:A2:0 is registered to Design For Life Systems in GB.

OUI prefix	70B3D5A20
Vendor	Design For Life Systems
Registry	MA-S (36-bit, small block)
Country	GB
Example MAC	70:B3:D5:A2:0:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5A20 to Design For Life Systems. 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:A2:0, it is Design For Life Systems hardware.

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