Call your phone company. This happened to me, though not as bad as you are describing. The police told me there is a standard procedure whereby the police, in cooperation with the phone company, can do quite a lot. Where I live, the procedure is like this: the phone company tells you to press certain numbers after a harrasing call is received. This triggers the phone company's computers to track the call. The phone company will give that information NOT to YOU. They will give it to the police. The police will they get with you about what further should be done. Maybe I'm just lucky that we have that procedure in my city. Maybe you are not so lucky. In my case, I received a call threatening sexual assault. I was completely satisfied with the help I got from cops and phone company(land line.) Terrible that you should go through this.