Currently, this IP's list (https://ip-ranges.atlassian.com) is only showing Atlassian "owned" IP addresses. The IPv6 range "2406:da00:ff00::0/96*" is not listed there because it's not owned by Atlassian. https://bitbucket.org/blog/new-ip-addresses-bitbucket-cloud
However, it would be best if we can have a single list (in JSON file format) of Bitbucket.org IP addresses that Atlassian's owned or not.
Benefits: This is for automation purposes for other users.