Who owns MAC prefix CCF538?

CCF538 is registered to 3isysnetworks in the IEEE MA-L registry.

What devices use CCF538?

Any network device with a MAC address starting CC:F5:38 was manufactured by or for 3isysnetworks.

MA-L · OUI prefix

3isysnetworks

Any MAC address starting CC:F5:38 is registered to 3isysnetworks in TW.

OUI prefix	CCF538
Vendor	3isysnetworks
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	CC:F5:38:00:00:00

What this means

The IEEE assigned the MA-L block CCF538 to 3isysnetworks. 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 CC:F5:38, it is 3isysnetworks hardware.

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