Question for my fellow anons: does anyone know if a database – preferably free – exists through which we can research the owners of telephone numbers and VOIP numbers?

I'm asking because lately I'm getting a ton of calls from numbers I don't know. I used to ignore the calls. Lately I've been answering but not saying anything. Nobody speaks. I've also hidden my own number and called the numbers back, only to get weird messages that the numbers are out of service or not taking calls.

I'd like to know who TF is hassling me.

Thanks if anyone has any suggestions.