Dec 31, 2014
Most phone numbers are spoofed and probably why they can't trace it. Here's the explanation of it:
phone spoofing explanation
http://en.wikipedia.org/wiki/Spoofing_attack
http://www.fcc.gov/guides/caller-id-and-spoofing
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Call and file a complaint with your phone service provider, the least they can do is block this number from calling you. Meanwhile, get a call blocker for yourself. You can google them and many are around $50.00 or so. If its a cell phone, some already have call blocking, if not, there are free apps on the web that will work for some. You can google this. If you have a smart phone, there is a free app called call control. Iphones appear to have apps also. Another one is called Mr. Number.
http://800notes.com/arts/I2neMkbUAAo/where-to-report-phone-crime