In order to create RDS, I need to create a VPC and two subnets attached to it.

If I choose as IPv4 CIDR for VPC, can you please suggest IPv4 CIDR blocks for the two subnets that I have to create?



You should split that up in to subnets with /24, like this:

Any /24 in the to range is valid. I suggest reading the VPC and Subnet Basics in the AWS docs also.

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