Who owns MAC prefix D443A8?

D443A8 is registered to Changzhou Haojie Electric Co., Ltd. in the IEEE MA-L registry.

What devices use D443A8?

Any network device with a MAC address starting D4:43:A8 was manufactured by or for Changzhou Haojie Electric Co., Ltd..

MA-L · OUI prefix

Changzhou Haojie Electric Co., Ltd.

Any MAC address starting D4:43:A8 is registered to Changzhou Haojie Electric Co., Ltd. in CN.

OUI prefix	D443A8
Vendor	Changzhou Haojie Electric Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	D4:43:A8:00:00:00

What this means

The IEEE assigned the MA-L block D443A8 to Changzhou Haojie Electric 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 D4:43:A8, it is Changzhou Haojie Electric Co., Ltd. hardware.

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