Hello @Santhi Dhanuskodi
I think you are referencing Azure Data Factory SFTP linked service to make connection to client's SFTP.
https://learn.microsoft.com/en-us/azure/data-factory/connector-sftp?tabs=data-factory
Azure Data Factory compute is done on a managed pool. IP address might be different every time.
If you still want to get outbound IP range please see Azure IP ranges
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