My telco is most definitely not able to determine which particular restaurant, shop or highrise apartment I visited (I know because I have direct experience with requesting this data from telcos via courts and how precise it actually is).

Telcos can calculate approximately where I was (with accuracy worse than raw unaided GPS - so ±10m at least, and unpredictably wrong if I'm behind a wall or in a vertically built-up area) at a particular point in time - but they don't know the exact timestamp to look for.