Who owns MAC prefix 70B3D529A?

70B3D529A is registered to Profusion Limited in the IEEE MA-S registry.

What devices use 70B3D529A?

Any network device with a MAC address starting 70:B3:D5:29:A was manufactured by or for Profusion Limited.

MA-S · OUI prefix

Profusion Limited

Any MAC address starting 70:B3:D5:29:A is registered to Profusion Limited.

OUI prefix	70B3D529A
Vendor	Profusion Limited
Registry	MA-S (36-bit, small block)
Example MAC	70:B3:D5:29:A:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D529A to Profusion Limited. 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:D5:29:A, it is Profusion Limited hardware.

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