Netflix has been transferring enormous parts of its streaming operation to Amazon Web Services (AWS) for years now, also it says it’s finally finished its giant shift to the cloud. “We’re joyful to report that in early January of 2016, after seven years of diligent effort, we’ve finally finished our cloud migration and shut down the last remaining data center tad used by our streaming service.

Netflix had previously intended to complete the shift by the end of last summer.

Formerly, information and the applications linked to payments and charge were in a cage Netflix rented at a colocation facility. Netflix’s streaming company no longer runs any of its own data center space with this last bit ended. But not everything is in Amazon.

Netflix runs its own content delivery network (CDN) called Open Connect. Netflix handles Open Connect from Amazon, but the storage cartons carrying videos that stream to mobile apparatus or your home are all found within Internet service providers’ networks in data centers or facilities where traffic is exchanged by leading network operators, at Internet exchange points. Traffic is distributed by Netflix right to Verizon, Comcast, AT&T, and other large network operators at these exchange points.

Once a customer hits the “play” button, video is delivered from one of these websites. But all the applications and information needed to handle everything a customer does before clicking “play”–such as signing up for the service or hunting videos–is running in the Amazon cloud. All the customer-facing systems for the company that is streaming are so in the Open Connect storage cartons or Amazon.

A lot of the technology needed to handle workers of the business that was streaming is additionally in Amazon, although the firm also uses some software-as-a-service applications including Workday.

There is one other exception to the cloud to the shift of Netflix. The old DVD mailing company hasn’t while the streaming company has gone all cloud. The streaming and DVD companies are run individually, with their particular systems and procedures.

To put it differently, the DVD company is not experiencing the enormous increase that needs the skill to scale up as needed. Netflix streaming only keeps growing and accounts for more than one third of all North American Internet traffic that is frozen during peak viewing hours, based on the most recent Sandvine International Internet Phenomena Report.

Amazon’s cloud network is spread across 12 areas globally, every one of which has availability zones consisting of one or more data centers. Netflix runs mainly in the Northern Virginia, Oregon, and Dublin areas.