Who called from 31205813900

I riceved today

We had 2 calls from this number today, to my office and cellphone. I am in Tønsberg, Norway. I dont answer when i see all the numbers, so do anyone know what they are doing?

I got this call today,who's that?

Yes, I have received a phone call from this number and don't know who is....

Ho ricevuto adesso una chiamata da questo numero, non ho fatto in tempo a rispondere ma non li richiamo di certo.
Si sa niente?