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How can you find out your passport details using your passport number?

Answer:
Currently, only the Australia government provides such service for its citizens.
If you are an Australian citizen who has a valid passport, you can log into this page:

https://www.passports.gov.au/Web/Doc/Authentication.aspx

And you passport details show up. You can use this website for different things, e.g. to quickly report the passport lost or stolen before you go to the police or, if abroad, Australian embassy.
First answer by Majalinno. Last edit by Majalinno. Contributor trust: 76 [recommend contributor recommended]. Question popularity: 9 [recommend question].