Who owns MAC prefix 4C4BF99?

4C4BF99 is registered to Tecnoplus Srl in the IEEE MA-M registry.

What devices use 4C4BF99?

Any network device with a MAC address starting 4C:4B:F9:9 was manufactured by or for Tecnoplus Srl.

MA-M · OUI prefix

Tecnoplus Srl

Any MAC address starting 4C:4B:F9:9 is registered to Tecnoplus Srl in IT.

OUI prefix	4C4BF99
Vendor	Tecnoplus Srl
Registry	MA-M (28-bit, medium block)
Country	IT
Example MAC	4C:4B:F9:9:00:00:00

What this means

The IEEE assigned the MA-M block 4C4BF99 to Tecnoplus Srl. 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 4C:4B:F9:9, it is Tecnoplus Srl hardware.

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