Who owns MAC prefix 20B37F3?

20B37F3 is registered to QT medical inc in the IEEE MA-M registry.

What devices use 20B37F3?

Any network device with a MAC address starting 20:B3:7F:3 was manufactured by or for QT medical inc.

MA-M · OUI prefix

QT medical inc

Any MAC address starting 20:B3:7F:3 is registered to QT medical inc in US.

OUI prefix	20B37F3
Vendor	QT medical inc
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	20:B3:7F:3:00:00:00

What this means

The IEEE assigned the MA-M block 20B37F3 to QT medical inc. 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 20:B3:7F:3, it is QT medical inc hardware.

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