Or you can try TCPView, a Sysinternals tool (read safe). Download application from
here. Just 284 KB file.
Its like above command, but display the apps in a GUI, and dynamically updates itself. You can sort by "Received" column to know which app is taking most amount of bandwidth.
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Marty: Hey, Doc, we better back up. We don't have enough road to get up to 88.
Doc Brown: Roads? Where we're going, we don't need, "roads!" :)
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