Who owns MAC prefix 70B3D5584?

70B3D5584 is registered to Sertone, a division of Opti-Knights Ltd in the IEEE MA-S registry.

What devices use 70B3D5584?

Any network device with a MAC address starting 70:B3:D5:58:4 was manufactured by or for Sertone, a division of Opti-Knights Ltd.

MA-S · OUI prefix

Sertone, a division of Opti-Knights Ltd

Any MAC address starting 70:B3:D5:58:4 is registered to Sertone, a division of Opti-Knights Ltd.

OUI prefix	70B3D5584
Vendor	Sertone, a division of Opti-Knights Ltd
Registry	MA-S (36-bit, small block)
Example MAC	70:B3:D5:58:4:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5584 to Sertone, a division of Opti-Knights 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:D5:58:4, it is Sertone, a division of Opti-Knights Ltd hardware.

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