Who owns MAC prefix 044CEF?

044CEF is registered to Fujian Sanao Technology Co.,Ltd in the IEEE MA-L registry.

What devices use 044CEF?

Any network device with a MAC address starting 04:4C:EF was manufactured by or for Fujian Sanao Technology Co.,Ltd.

MA-L · OUI prefix

Fujian Sanao Technology Co.,Ltd

Any MAC address starting 04:4C:EF is registered to Fujian Sanao Technology Co.,Ltd in CN.

OUI prefix	044CEF
Vendor	Fujian Sanao Technology Co.,Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	04:4C:EF:00:00:00

What this means

The IEEE assigned the MA-L block 044CEF to Fujian Sanao 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 04:4C:EF, it is Fujian Sanao Technology Co.,Ltd hardware.

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