What devices use 78EC22?

Any network device with a MAC address starting 78:EC:22 was manufactured by or for Shanghai Qihui Telecom Technology Co., LTD.

MA-L · OUI prefix

Shanghai Qihui Telecom Technology Co., LTD

Q: Who owns MAC prefix 78EC22?

78EC22 is registered to Shanghai Qihui Telecom Technology Co., LTD in the IEEE MA-L registry.

Any MAC address starting 78:EC:22 is registered to Shanghai Qihui Telecom Technology Co., LTD in CN.

OUI prefix	78EC22
Vendor	Shanghai Qihui Telecom Technology Co., LTD
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	78:EC:22:00:00:00

What this means

The IEEE assigned the MA-L block 78EC22 to Shanghai Qihui Telecom 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 78:EC:22, it is Shanghai Qihui Telecom Technology Co., LTD hardware.

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