Who owns MAC prefix 640DE6?

640DE6 is registered to Petra Systems in the IEEE MA-L registry.

What devices use 640DE6?

Any network device with a MAC address starting 64:0D:E6 was manufactured by or for Petra Systems.

MA-L · OUI prefix

Petra Systems

Any MAC address starting 64:0D:E6 is registered to Petra Systems in US.

OUI prefix	640DE6
Vendor	Petra Systems
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	64:0D:E6:00:00:00

What this means

The IEEE assigned the MA-L block 640DE6 to Petra Systems. 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 64:0D:E6, it is Petra Systems hardware.

Look up another MAC