trace a phone number

Do you get frustrated when you receive an unfamiliar caller on the phone? For me it's frustrating because it's like invading one's privacy. I don't usually answer unfamiliar numbers on my phone because not knowing who the other caller is somewhat creeps me out. I'm the kind of person who wants distance and privacy especially with my private life. But my worries had vanished when I bumped into PhoneInfoTracer. Their service actually can trace a phone number and especially the one's on your billing statement. Now I can be at ease knowing that I have someone to trust.