Public IaaS cloud providers have been on a dizzying streak of announcing and opening new data centers to power their operations, and according to the CEO of Amazon Web Services Andy Jassy, that\u2019s not expected to slow down any time soon.\n\u201cWe are not close to being done expanding geographically,\u201d Jassy said at AWS\u2019s San Francisco Summit last week. \u201cI think virtually every tier one country will have an AWS region over time and I think many of the emergent countries will as well.\u201d\n+MORE AT NETWORK WORLD: A peek inside Amazon\u2019s cloud, from global scale to custom hardware | Deep dive comparison of cloud storage options from Amazon, Microsoft and Google +\nAWS already has 16 regions across the world, with three more in the works in Paris, China and Sweeden. You can check out AWS\u2019s global infrastructure here. There are 196 countries in the world. That means AWS has a lot of room to expand.\nAWS isn\u2019t alone in adding cloud regions around the world. Microsoft Azure has 34 regions with announced plans for four additional ones, two in the U.S. and two in France. Google, meanwhile, has seven regions with plans for 10 more.\nThese numbers are not all apples-to-apples comparisons. AWS, for example, has a structure where each region is made up of at least two Availability Zones (AZs), which allow customers to spread workloads across multiple discrete data centers with their own power supplies. Google also uses that structure, Microsoft does not. So while AWS has only 16 regions \u2013 which may seem small compared to Azure\u2019s 34 - AWS has 42 AZs.\nThe broader point is that all three of these providers are dramatically building up their network of cloud data centers to keep up with the tremendous growth of this market. Gartner estimates that cloud market overall was worth $209 billion in 2016, and will be more than $380 billion by 2020. To keep up with demand, it seems that the big cloud vendors are only going to get bigger.