Who owns MAC prefix 0CEFAF7?

0CEFAF7 is registered to Syntrans AB in the IEEE MA-M registry.

What devices use 0CEFAF7?

Any network device with a MAC address starting 0C:EF:AF:7 was manufactured by or for Syntrans AB.

MA-M · OUI prefix

Syntrans AB

Any MAC address starting 0C:EF:AF:7 is registered to Syntrans AB in SE.

OUI prefix	0CEFAF7
Vendor	Syntrans AB
Registry	MA-M (28-bit, medium block)
Country	SE
Example MAC	0C:EF:AF:7:00:00:00

What this means

The IEEE assigned the MA-M block 0CEFAF7 to Syntrans AB. 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 0C:EF:AF:7, it is Syntrans AB hardware.

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