Someone called me from a phone number, I would like to know who it is for free, is it possible?

I received a call from a phone number I don’t recognize and I would like to know who called me without having to pay for this service. Are there any free methods or tools that allow me to identify the owner of a phone number? I’ve heard of various online phone directories and apps, but I’m not sure how reliable and effective they are. Can you tell me the free options for identifying a phone number?