Who owns MAC prefix A03131?

A03131 is registered to Procenne Digital Security in the IEEE MA-L registry.

What devices use A03131?

Any network device with a MAC address starting A0:31:31 was manufactured by or for Procenne Digital Security.

MA-L · OUI prefix

Procenne Digital Security

Any MAC address starting A0:31:31 is registered to Procenne Digital Security in TR.

OUI prefix	A03131
Vendor	Procenne Digital Security
Registry	MA-L (24-bit, large block)
Country	TR
Example MAC	A0:31:31:00:00:00

What this means

The IEEE assigned the MA-L block A03131 to Procenne Digital Security. 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 A0:31:31, it is Procenne Digital Security hardware.

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