You can create a new default VPC by Amazon Virtual Private Cloud

Now the customer’s don’t have to contact the AWS support when the default VPC has been deleted because now you create a new default VPC straight from the console using CLI. Amazon Virtual Private Cloud has now made it possible by letting customers create their own default VPC and this is a self-service feature. If the VPCs accidentally gets deleted you can now take remedial actions by creating automatically of new default VPC using the API. In all AWS regions this feature is now available for more details about default VPCs, click on to this link (http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/default-vpc.html)