Thank you for posting your question on this Azure Q&A community.
I would like to help you with this concern and let me gather my 2 cents here....
-Have you tried to use Azure graph by getting a CSV file generated with all the azure resources listed?
-You might try to use Azure Resource visualizer blade option... Did you try it?
-If you have any other VM within your tenant... Have you tried to do a DNS query to find the IP address mapped to it?
Looking forward to hearing from you
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