[Hardraade]

Many, many years ago (around 1990) there existted hacker software which could find any mobile based on tower handshakes, and basically the handshake was as long as the phone had power. No GPS involved.

[dhs12345]

Ya. That probably still exists (by design).

It might have positive uses such as the police triangulating a person with dementia, or a child, or someone who has been kidnapped.

Also, the cell tower would have to know distance fairly accurately.