Yes, Tablestore supports cross-region data migration. You can use DataWorks or Tunnel Service to migrate data.
When you migrate data across regions, ensure that the machine that runs the scheduling task can connect to the source and destination instances. You can test the network connectivity as follows:
When migrating data using DataWorks, create data sources for OTSReader and OTSWriter and test their network connectivity.
When migrating data using Tunnel Service, run the `curl` command on the client machine that is connected to the channel. Run the command on the Endpoint of the source instance and the Endpoint of the destination instance. If the `Unsupported Operation` message is returned for both, this indicates that the network is connected.
After you confirm the network connectivity, you can migrate data using DataWorks or Tunnel Service. For more information, see Data Integration, Time series table synchronization, and Data table synchronization.