What devices use C4D489?

Any network device with a MAC address starting C4:D4:89 was manufactured by or for JiangSu Joyque Information Industry Co.,Ltd.

MA-L · OUI prefix

JiangSu Joyque Information Industry Co.,Ltd

Q: Who owns MAC prefix C4D489?

C4D489 is registered to JiangSu Joyque Information Industry Co.,Ltd in the IEEE MA-L registry.

Any MAC address starting C4:D4:89 is registered to JiangSu Joyque Information Industry Co.,Ltd in CN.

OUI prefix	C4D489
Vendor	JiangSu Joyque Information Industry Co.,Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	C4:D4:89:00:00:00

What this means

The IEEE assigned the MA-L block C4D489 to JiangSu Joyque Information Industry 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 C4:D4:89, it is JiangSu Joyque Information Industry Co.,Ltd hardware.

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