Who called from 4120909100

I WANT TO KNOW WHERE THIS CALL CAME FROM.

I would just like to know who possess this number because twice already that this number called to my mobile phone and I was not able to answer the call.  I have no negative complain but I would just like to find out who wown this number.

Thank you.

i have been receiving short missed calls from this line. very irritating...

If you find out please let me know!!  I have also received 10 missed calls yesterday.  It rings for a few seconds and then hangs up!

I get a misscall from this number as well
It's just a misscall for 4 seconds only
+41 20909100 is switzerland coad
and I am leaving in Abu Dhabi
I hope some one can give an explanation!!