From Jeff's blog post: > All AWS accounts created after December 4, 2013 are already VPC-only, unless EC2-Classic was enabled as a result of a support request.

From Jeff's blog post: > All AWS accounts created after December 4, 2013 are already VPC-only, unless EC2-Classic was enabled as a result of a support request. There were announcements made at the time, but I don't remember if they explicitly called it a deprecated product at the time (hence why I hedged my wording in GP comment).