Who owns MAC prefix 8C1F64703?

8C1F64703 is registered to Calnex Solutions plc in the IEEE MA-S registry.

What devices use 8C1F64703?

Any network device with a MAC address starting 8C:1F:64:70:3 was manufactured by or for Calnex Solutions plc.

MA-S · OUI prefix

Calnex Solutions plc

Any MAC address starting 8C:1F:64:70:3 is registered to Calnex Solutions plc.

OUI prefix	8C1F64703
Vendor	Calnex Solutions plc
Registry	MA-S (36-bit, small block)
Example MAC	8C:1F:64:70:3:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F64703 to Calnex Solutions plc. 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 8C:1F:64:70:3, it is Calnex Solutions plc hardware.

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