What are the IP ranges for GCE zones?

Question

I need to provide my CDN the IP ranges that I might be using when I create GCE instances. Is the list of IP ranges by GCE location published anywhere?

Answer 1

We don't currently publish which IPs map to which ranges. We can and do move blocks as necessary to balance capacity. However, all Google Cloud IPs are listed here:

dig txt _cloud-netblocks.googleusercontent.com +short
"v=spf1 include:_cloud-netblocks1.googleusercontent.com include:_cloud-netblocks2.googleusercontent.com include:_cloud-netblocks3.googleusercontent.com ?all"

See also:

• Google App Engine - urlFetch address not in _netblocks.google.com
• Compute Engine Firewall for App Engine Url Fetch

Answer 2

You might also consider reserving ip addresses and reusing those to start/restart your instances depending on what you're doing.

https://developers.google.com/compute/docs/reference/latest/addresses/insert