What devices use 4099E3?

Any network device with a MAC address starting 40:99:E3 was manufactured by or for Guangzhou Mudi Information Technology Co., Ltd.

MA-L · OUI prefix

Guangzhou Mudi Information Technology Co., Ltd

Q: Who owns MAC prefix 4099E3?

4099E3 is registered to Guangzhou Mudi Information Technology Co., Ltd in the IEEE MA-L registry.

Any MAC address starting 40:99:E3 is registered to Guangzhou Mudi Information Technology Co., Ltd in CN.

OUI prefix	4099E3
Vendor	Guangzhou Mudi Information Technology Co., Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	40:99:E3:00:00:00

What this means

The IEEE assigned the MA-L block 4099E3 to Guangzhou Mudi Information 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 40:99:E3, it is Guangzhou Mudi Information Technology Co., Ltd hardware.

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