Assuming S3 is in all regions, then the list can be updated by running: ``` wget https://pricing.us-east-1.amazonaws.com/offers/v1.0/aws/AmazonS3/current/index.json -O - | jq '.products[].attributes.regionCode' | sort | uniq ``` [[product_region]] As of 2021-11-20 there are 24 AWS Regions: 1. af-south-1 1. ap-east-1 1. ap-northeast-1 1. ap-northeast-2 1. ap-northeast-3 1. ap-south-1 1. ap-southeast-1 1. ap-southeast-2 1. ca-central-1 1. cn-north-1 1. eu-central-1 1. eu-north-1 1. eu-south-1 1. eu-west-1 1. eu-west-2 1. eu-west-3 1. me-south-1 1. sa-east-1 1. us-east-1 1. us-east-2 1. us-gov-east-1 1. us-gov-west-1 1. us-west-1 1. us-west-2