At 3am last night I got woken up by a load of phone calls from a number my phone called 'Unknown'. I would have normally picked up but I was too tired to bother, and in the morning I saw that I had 10 missed calls altogether. I've read before that 'unknown' as opposed to 'withheld' numbers are usually from dodgy companies and cold-callers. However, somehow I find it hard to believe that a company would ring me at such a strange time of day. What's more, the calls were irregular in the length of time they allowed the phone to ring and even in the pauses between calls. Therefore, I'm more inclined to think that the calls (seeing as it was a Saturday night after all) were from one of my drunk friends wondering why I wasn't out - or even just prank calling me. Is this probable or even possible? My phone is a Sony Ericsson w995, and putting '141' in front of my number before dialling it always comes up as 'withheld'.