What devices use 6433B50?

Any network device with a MAC address starting 64:33:B5:0 was manufactured by or for Duomondi International Development Co., Ltd..

MA-M · OUI prefix

Duomondi International Development Co., Ltd.

Q: Who owns MAC prefix 6433B50?

6433B50 is registered to Duomondi International Development Co., Ltd. in the IEEE MA-M registry.

Any MAC address starting 64:33:B5:0 is registered to Duomondi International Development Co., Ltd. in HK.

OUI prefix	6433B50
Vendor	Duomondi International Development Co., Ltd.
Registry	MA-M (28-bit, medium block)
Country	HK
Example MAC	64:33:B5:0:00:00:00

What this means

The IEEE assigned the MA-M block 6433B50 to Duomondi International Development 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 64:33:B5:0, it is Duomondi International Development Co., Ltd. hardware.

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