However, a source familiar with Dropbox’s current strategy said the company lately has been moving more of its IT infrastructure away from AWS and onto its own turf. There are now 10,000 servers in Dropbox facilities running loads that had been on Amazon EC2, although it’s not clear what percentage of Dropbox’s computing requirements that represents. Dropbox is currently storing data both in its own data centers and on Amazon S3 until the end of the year, this source said.