no idea who they are, where they're calling from or what. No voicemail msg left...

got called by this number few days ago.. no msg left.. wondered what they wanted? or who they are?

Recieved a call at 10.14 on 03/03/08 no message left

Have 6 missed calls from this number today (+2070783271). I tried to phone it back out of curiosity but my service provideder (Virgin) said that I was not allowed to call this number from my hand-set.
I hope someone can be more speciffic about who this number belongs to.