Who owns MAC prefix F41E5E?

F41E5E is registered to RtBrick Inc. in the IEEE MA-L registry.

What devices use F41E5E?

Any network device with a MAC address starting F4:1E:5E was manufactured by or for RtBrick Inc..

MA-L · OUI prefix

RtBrick Inc.

Any MAC address starting F4:1E:5E is registered to RtBrick Inc. in US.

OUI prefix	F41E5E
Vendor	RtBrick Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	F4:1E:5E:00:00:00

What this means

The IEEE assigned the MA-L block F41E5E to RtBrick Inc.. 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 F4:1E:5E, it is RtBrick Inc. hardware.

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