As part of looking to get ICMP ping values for each server region (using workaround of pinging AWS dynamodb endpoints hosted in corresponding regions, see original Q), I've come up with the following mapping:
Region.USEast: us-east-1 Region.Australia: ap-southeast-2 Region.Brazil: sa-east-1 Region.EUWest: eu-west-1 Region.Japan: ap-northeast-1 Region.Singapore: ap-southeast-1
I wasn't able to find a corresponding region for USCentral (list here), is it maybe us-west-1?