When you create a tenant, you must choose a region for your tenant. Astra Streaming supports AWS, Microsoft Azure, and Google Cloud regions. For optimal performance, choose a region that is geographically close to your users.

These regions also support CDC for Astra DB. You can only use CDC for Astra DB in regions that support both Astra Streaming and Astra DB.

ElasticSearch and Snowflake can be in different regions than Astra Streaming.