I often have to configure a firewall rule to specifically allow Google Earth so if you find yourself in the same situation here are the IP addresses that allow communication.
Note you can run an iplookup for these 3 subdomains:
but there are still a few IP addresses needed that aren’t included in those results. The full list including these domains are below.
188.8.131.52/28 (hostrange is 184.108.40.206-220.127.116.11)
If you discover an IP that isn’t listed here please leave a comment below and I’ll update this list.
Hope I saved you some time.