At least part of their content delivery network is based on their own hardware/software (see https://openconnect.netflix.com/en/ https://openconnect.netflix.com

At least part of their content delivery network is based on their own hardware/software (see https://openconnect.netflix.com/en/ https://openconnect.netflix.com/en/ and the PDF referenced there). It's called "Open Connect Appliance". They use AWS for video transcoding) (see http://techblog.netflix.com/2015/12/high-quality-video-encoding-at-scale.html http://techblog.netflix.com/2015/12/high-quality-video-encod...) and probably other activities (analytics, business)