Retool on-prem license varification

We have retool installed on premise and while running it there is a sent request to validate our license.
As of now the request fails because we need to whitelist the verification endpoint in our cluster.
After checking the documentation I did not find any external IP range for this endpoint.
Is this knowledge documented anywhere?

Hi there! Our IP addresses for license checks, metadata, and invites are listed here: https://docs.retool.com/docs/network-and-storage-requirements#license-checks