Who owns MAC prefix 70B3D523F?

70B3D523F is registered to ETA-USA in the IEEE MA-S registry.

What devices use 70B3D523F?

Any network device with a MAC address starting 70:B3:D5:23:F was manufactured by or for ETA-USA.

MA-S · OUI prefix

ETA-USA

Any MAC address starting 70:B3:D5:23:F is registered to ETA-USA in US.

OUI prefix	70B3D523F
Vendor	ETA-USA
Registry	MA-S (36-bit, small block)
Country	US
Example MAC	70:B3:D5:23:F:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D523F to ETA-USA. 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:D5:23:F, it is ETA-USA hardware.

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