Who owns MAC prefix 000CEF?

000CEF is registered to ONE Investment Group Limited in the IEEE MA-L registry.

What devices use 000CEF?

Any network device with a MAC address starting 00:0C:EF was manufactured by or for ONE Investment Group Limited.

MA-L · OUI prefix

ONE Investment Group Limited

Any MAC address starting 00:0C:EF is registered to ONE Investment Group Limited.

OUI prefix	000CEF
Vendor	ONE Investment Group Limited
Registry	MA-L (24-bit, large block)
Example MAC	00:0C:EF:00:00:00

What this means

The IEEE assigned the MA-L block 000CEF to ONE Investment Group Limited. 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:EF, it is ONE Investment Group Limited hardware.

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