Azure Cosmos DB is gift across all Azure regions, as precise at the Azure areas page. Because it's miles the center carrier, each new datacenter has an Azure Cosmos DB presence.
When you put a location, remember that Azure Cosmos DB respects sovereign and government clouds. That is, in case you create an account in a sovereign location, you can't reflect out of that sovereign place. Similarly, you can not permit replication into other sovereign locations from an outdoor account.