Who owns MAC prefix 6433B5E?

6433B5E is registered to University of Texas at Austin in the IEEE MA-M registry.

What devices use 6433B5E?

Any network device with a MAC address starting 64:33:B5:E was manufactured by or for University of Texas at Austin.

MA-M · OUI prefix

University of Texas at Austin

Any MAC address starting 64:33:B5:E is registered to University of Texas at Austin in US.

OUI prefix	6433B5E
Vendor	University of Texas at Austin
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	64:33:B5:E:00:00:00

What this means

The IEEE assigned the MA-M block 6433B5E to University of Texas at Austin. 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 64:33:B5:E, it is University of Texas at Austin hardware.

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