It's SKYPE. It's people using the voice over internet web service skype. I called a friend using my skype account, she didn't trust the number so she looked it up here. Then she sent me the link to this webpage to see what people were saying about this number. It's nothing to fear by itself. It could be a stranger calling, it could be a friend who doesn't want to leave a number. All this number tells you is that it's someone using Skype.
The caller leaves a screaming message on the voicemail. They also just hang up. But, they keep calling back. I was instructed to file a report with the local police department, and to press *57 after each call so the number can be traced and a harassment claim will automatically be filed after the 5th call (must press *57 after each call).
He gets my FAX machine now when he calls, he would call 10 times a day, on my business line, haven't heard from the TROLL in the last 24 hours, hopefully a EAR full of fax lately makes him go elsewhere lol