Who owns MAC prefix 5CFCE1?

5CFCE1 is registered to Resideo in the IEEE MA-L registry.

What devices use 5CFCE1?

Any network device with a MAC address starting 5C:FC:E1 was manufactured by or for Resideo.

MA-L · OUI prefix

Resideo

Any MAC address starting 5C:FC:E1 is registered to Resideo in US.

OUI prefix	5CFCE1
Vendor	Resideo
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	5C:FC:E1:00:00:00

What this means

The IEEE assigned the MA-L block 5CFCE1 to Resideo. 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 5C:FC:E1, it is Resideo hardware.

Other Resideo prefixes

Resideo holds 5 registered blocks in total.

00D02D 103089 48A2E6 B82CA0

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