One or two calls a day no answer

We get the same as cmart.  who is this?

caller hangs up and then rejects call after we try to call back

I tried a phone tracer. Heres what it said:
Its a Landline
Its in Independence Ky
Its in Kenton County
To get the owners name you had to pay and I dont have a credit card. Sorry. If you really want to know the persons name use a phone tracer and pay to geet the name and then post it back here please. Thank You

This person calls me 2 or 3 times a day, I answer and say hello and they hang up. When I call it back the automated mesage says that the number is disconnected. My boyfriend thinks it may be a fake number. The only thing I can think to do is block it or change my number.