Who owns MAC prefix 001D41?

001D41 is registered to Hardy Instruments in the IEEE MA-L registry.

What devices use 001D41?

Any network device with a MAC address starting 00:1D:41 was manufactured by or for Hardy Instruments.

MA-L · OUI prefix

Hardy Instruments

Any MAC address starting 00:1D:41 is registered to Hardy Instruments in US.

OUI prefix	001D41
Vendor	Hardy Instruments
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:1D:41:00:00:00

What this means

The IEEE assigned the MA-L block 001D41 to Hardy Instruments. 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 00:1D:41, it is Hardy Instruments hardware.

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