Algorand provides a form, from your registration URL to complete your nodes' registration on the MainNet. https://eb.algorand.foundation/nodereg/2DRE7....../
The IP address can be obtained from your node dashboard at app.blockdaemon.com. Log in and go to the Algorand node and click on the action menu at bottom right,
To get telemetry data for nodes, take the node name & GUID from the config
We can also help you obtain the Telemetry GUID if you run into any difficulties. Drop a note to email@example.com and we'll be happy to help you out.
Referenced from this Algorand article: