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Giving your address does not give the address of your roommates. They also need the list of your roommates to conclude the address of your roommates.

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Given that I know the mapping of an IP address and a physical address, I am unable to match one to the other?

I suspect you’re attacking a strawman.

Having the same IP address doesn't imply people are roommates. They might be coworkers, classmates, sharing Internet service, using the same VPN, etc.

Live in same general area with ISP providing CGNAT...

It is easy to move. You can't change your DNA.

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