AWS will give you a default VPC to use with other services (RDS, EC2, etc.), but you should not use it! It's an IPv4-only VPC, which means it's not future proof and there will be more charges for and public IPv4 addresses you use.
Instead, create a dual-stack, IPv6 compatible VPC to future proof your deployments and put yourself in a position to save money by using IPv6 only.
Check out @TrevorSullivan and his video "Build an IPv6-only Network on Amazon Web Services (AWS) || Virtual Private Cloud (VPC) 🕸️ 👨🏻💻" for a much more detailed walkthrough!
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