Who owns MAC prefix 001C5D?

001C5D is registered to Leica Microsystems in the IEEE MA-L registry.

What devices use 001C5D?

Any network device with a MAC address starting 00:1C:5D was manufactured by or for Leica Microsystems.

MA-L · OUI prefix

Leica Microsystems

Any MAC address starting 00:1C:5D is registered to Leica Microsystems.

OUI prefix	001C5D
Vendor	Leica Microsystems
Registry	MA-L (24-bit, large block)
Example MAC	00:1C:5D:00:00:00

What this means

The IEEE assigned the MA-L block 001C5D to Leica Microsystems. 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 00:1C:5D, it is Leica Microsystems hardware.

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