1 Answers
Chetan Shidling Staff answered 5 years ago
In each Region, AWS will provision a default VPC. This VPC has a /16 IPv4 CIDR address block of 172.31.0.0/16. This provides 65,536 private IPv4 addresses. In addition, there will be a /20 subnet that is created for each Availability Zone in the Region, which provides 4,096 addresses per subnet, with a few addresses reserved for AWS usage. The route table that is associated with the default VPC will have a public route, which in turn is associated with a provisioned internet gateway.