Who owns MAC prefix 001B3D?

001B3D is registered to EuroTel Spa in the IEEE MA-L registry.

What devices use 001B3D?

Any network device with a MAC address starting 00:1B:3D was manufactured by or for EuroTel Spa.

MA-L · OUI prefix

EuroTel Spa

Any MAC address starting 00:1B:3D is registered to EuroTel Spa in IT.

OUI prefix	001B3D
Vendor	EuroTel Spa
Registry	MA-L (24-bit, large block)
Country	IT
Example MAC	00:1B:3D:00:00:00

What this means

The IEEE assigned the MA-L block 001B3D to EuroTel Spa. 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 00:1B:3D, it is EuroTel Spa hardware.

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