Who owns MAC prefix 445D5E?

445D5E is registered to SHENZHEN Coolkit Technology CO.,LTD in the IEEE MA-L registry.

What devices use 445D5E?

Any network device with a MAC address starting 44:5D:5E was manufactured by or for SHENZHEN Coolkit Technology CO.,LTD.

MA-L · OUI prefix

SHENZHEN Coolkit Technology CO.,LTD

Any MAC address starting 44:5D:5E is registered to SHENZHEN Coolkit Technology CO.,LTD in CN.

OUI prefix	445D5E
Vendor	SHENZHEN Coolkit Technology CO.,LTD
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	44:5D:5E:00:00:00

What this means

The IEEE assigned the MA-L block 445D5E to SHENZHEN Coolkit Technology CO.,LTD. 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 44:5D:5E, it is SHENZHEN Coolkit Technology CO.,LTD hardware.

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