Jira Cloud integration and IP access control

Hi there,

We want to sync Asana with Jira Cloud and there is an IP access list on the Jira side. Same issue as described in Jira-Server + Asana: Which IPs to whitelist.

I raised a support request and received no useful answer. Has anyone managed to get a valid answer? Is there a fixed range of IP addresses for the Jira sync tasks?

Thanks in advanced for your help!