AWS hides the real availability zone names from you. From the docs: Can I assume that my Availability Zone us-east-1a is the same location as someone else's Av

AWS hides the real availability zone names from you. From the docs: Can I assume that my Availability Zone us-east-1a is the same location as someone else's Availability Zone us-east-1a? No. Currently, we do not support cross-account proximity. Each account's Availability Zones are independent. For example, the us-east-1a Availability Zone for one account might be in a different location than for another account. http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/FAQ_Regions_Availability_Zones.html http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/FA...