Ocean and Elastigroup support the following regions. 

AWS

us-east-1, us-east-2, us-west-1, us-west-2, ca-central-1, sa-east-1, eu-central-1, eu-west-1, eu-west-2, eu-west-3, eu-north-1, ap-south-1, me-south-1, ap-southeast-1, ap-southeast-2, ap-northeast-1, ap-northeast-2, ap-east-1, cn-north-1, cn-northwest-1, ap-northeast-3, af-south-1, eu-south-1, us-gov-east-1, us-gov-west-1, cn-north-1, cn-northwest-1.

Azure 

australia-central, australia-central-2, australia-east, australia-south-east, brazil-south, canada-central, canada-east, central-india, central-us, east-asia, east-us, east-us-2, france-central, france-south, germany-central, germany-north, germany-north-east, germany-west-central, japan-east, japan-west, korea-central, korea-south, north-central-us, north-europe, norway-east, norway-west, south-africa-north, south-africa-west, south-central-us, south-east-asia, south-india, switzerland-north, switzerland-west, uae-central, uae-north, uk-south, uk-west, west-central-us, west-europe, west-india, us-gov-arizona, us-gov-texas, us-gov-virginia, west-us, west-us-2, west-us-3.

GCP

us-east1, us-east1, us-east1, us-east4, us-east4, us-east4, us-central1, us-central1, us-central1, us-central1, us-west1, us-west1, us-west1, europe-west4, europe-west4, europe-west4, europe-west1, europe-west1, europe-west1, europe-west3, europe-west3, europe-west3, europe-west2, europe-west2, europe-west2, asia-east1, asia-east1, asia-east1, asia-southeast1, asia-southeast1, asia-southeast1, asia-northeast1, asia-northeast1, asia-northeast1, asia-south1, asia-south1, asia-south1, australia-southeast1, australia-southeast1, australia-southeast1, southamerica-east1, southamerica-east1, southamerica-east1, asia-east2, asia-east2, asia-east2, asia-northeast2, asia-northeast2, asia-northeast2, europe-north1, europe-north1, europe-north1, europe-west6, europe-west6, europe-west6, northamerica-northeast1, northamerica-northeast1, northamerica-northeast1, us-west2, us-west2, us-west2.