How many subnets can I create per VPC?
Currently you can create 200 subnets per VPC. If you would like to create more, please submit a case at the support center.

https://www.interviewquestionspdf.com/2017/01/how-many-subnets-can-i-create-per-vpc.html
Currently you can create 200 subnets per VPC. If you would like to create more, please submit a case at the support center.