Answer the call, then hang up. Then press *57.

That will put a trace on the call. A recording will tell you if the trace is successful, and you will be charged a $1. After three successful traces, you can call the phone company to get the number.

So they have to call you 3 times before you can get the #?

The phone company probably won't give you the number until it's 3 times from the same source. It's basically step 1 in how they handle their phone harrassment issues.

Your phone company should offer a "security screen" feature that forces businesses to list a number.

I guess the question is, why do you need to know? If you're just dodging bill collectors, I suggest you learn to ignore private calls, or pay up. If it's something pressing, then I suggest you get the security screen service, or talk to your phone company about a trace.

Its a long story. I know the guy that is calling me. We are just trying to figure out where he is calling from. Again, long story

I see, he's in jail and you are trying to figure out which one. He probably can't tell you with a police baton upside his head..

I had a problem with my number showing up as "Private Caller" on people's ID. It was happening because I told the telephone company that I didn't want our phone number listed in the phone book. They flipped the wrong switch and it stopped my telephone number from showing up on caller id's..