Who owns MAC prefix 001FDD?

001FDD is registered to GDI LLC in the IEEE MA-L registry.

What devices use 001FDD?

Any network device with a MAC address starting 00:1F:DD was manufactured by or for GDI LLC.

MA-L · OUI prefix

GDI LLC

Any MAC address starting 00:1F:DD is registered to GDI LLC in US.

OUI prefix	001FDD
Vendor	GDI LLC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:1F:DD:00:00:00

What this means

The IEEE assigned the MA-L block 001FDD to GDI LLC. 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 00:1F:DD, it is GDI LLC hardware.

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