Who owns MAC prefix 845A81?

845A81 is registered to ffly4u in the IEEE MA-L registry.

What devices use 845A81?

Any network device with a MAC address starting 84:5A:81 was manufactured by or for ffly4u.

MA-L · OUI prefix

ffly4u

Any MAC address starting 84:5A:81 is registered to ffly4u in FR.

OUI prefix	845A81
Vendor	ffly4u
Registry	MA-L (24-bit, large block)
Country	FR
Example MAC	84:5A:81:00:00:00

What this means

The IEEE assigned the MA-L block 845A81 to ffly4u. 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 84:5A:81, it is ffly4u hardware.

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