Who called from 2030513739

Received call around 10:30 PM, answered and got no one on other end.Very annoying to get a call this late at night.
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This number calls me today at16.52 pm I'm from finland and this is very odd? I'dont pick up phone because +44 is not finland(+358) number..

this number shows up when they call you from skype. mom of my girlfriend calls our landline with skype and you can be sure she didn't call any of people above.

+442030513739 called me to Ukraine 23.05.2011 at 16:45

They called me today at 12.13. I live in Serbia. I didnt pick up the phone.