Who owns MAC prefix AC1DDFC?

AC1DDFC is registered to Beijing Chunhong Technology Co., Ltd. in the IEEE MA-M registry.

What devices use AC1DDFC?

Any network device with a MAC address starting AC:1D:DF:C was manufactured by or for Beijing Chunhong Technology Co., Ltd..

MA-M · OUI prefix

Beijing Chunhong Technology Co., Ltd.

Any MAC address starting AC:1D:DF:C is registered to Beijing Chunhong Technology Co., Ltd. in CN.

OUI prefix	AC1DDFC
Vendor	Beijing Chunhong Technology Co., Ltd.
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	AC:1D:DF:C:00:00:00

What this means

The IEEE assigned the MA-M block AC1DDFC to Beijing Chunhong 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 AC:1D:DF:C, it is Beijing Chunhong Technology Co., Ltd. hardware.

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