What devices use 644BC3?

Any network device with a MAC address starting 64:4B:C3 was manufactured by or for Shanghai WOASiS Telecommunications Ltd., Co..

MA-L · OUI prefix

Shanghai WOASiS Telecommunications Ltd., Co.

Q: Who owns MAC prefix 644BC3?

644BC3 is registered to Shanghai WOASiS Telecommunications Ltd., Co. in the IEEE MA-L registry.

Any MAC address starting 64:4B:C3 is registered to Shanghai WOASiS Telecommunications Ltd., Co. in CN.

OUI prefix	644BC3
Vendor	Shanghai WOASiS Telecommunications Ltd., Co.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	64:4B:C3:00:00:00

What this means

The IEEE assigned the MA-L block 644BC3 to Shanghai WOASiS Telecommunications Ltd., Co.. 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 64:4B:C3, it is Shanghai WOASiS Telecommunications Ltd., Co. hardware.

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