So how many data centers does Amazon Web Services have?
Laurianne, IBM's 40 global data centers compares favorably to Verizon Terremark's 49 and CenturyLink Savvis' 50. The telcos had lots of data centers before cloud computing came along to support their network operations. I've never inspected a Verizon or CenturyLink data center to verify that the whole thing is dedicated to cloud computing. My guess is, it isn't. Nevertheless, they are my two best examples of global reach. Amazon Web Services lists seven regions in which it operates data centers around the world. Because Amazon has multiple "availability zones" in each center, think independent power and communications or a small, free standing center, I count each Amazon region as more than one data center but can't supply an exact comparison. Something like 16 or 18 is realistic, in my opinion.