Who owns MAC prefix 70B3D54B2?

70B3D54B2 is registered to Certus Operations Ltd in the IEEE MA-S registry.

What devices use 70B3D54B2?

Any network device with a MAC address starting 70:B3:D5:4B:2 was manufactured by or for Certus Operations Ltd.

MA-S · OUI prefix

Certus Operations Ltd

Any MAC address starting 70:B3:D5:4B:2 is registered to Certus Operations Ltd.

OUI prefix	70B3D54B2
Vendor	Certus Operations Ltd
Registry	MA-S (36-bit, small block)
Example MAC	70:B3:D5:4B:2:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D54B2 to Certus Operations Ltd. 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:D5:4B:2, it is Certus Operations Ltd hardware.

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