Who owns MAC prefix 000C5E?

000C5E is registered to Calypso Medical in the IEEE MA-L registry.

What devices use 000C5E?

Any network device with a MAC address starting 00:0C:5E was manufactured by or for Calypso Medical.

MA-L · OUI prefix

Calypso Medical

Any MAC address starting 00:0C:5E is registered to Calypso Medical in US.

OUI prefix	000C5E
Vendor	Calypso Medical
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:0C:5E:00:00:00

What this means

The IEEE assigned the MA-L block 000C5E to Calypso Medical. 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 00:0C:5E, it is Calypso Medical hardware.

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