strange phone calls

I got a phone call this evening. Caller ID shows as “0301” The caller asked one a strange question. “Mr. Wong, What the URL for high court web site?” Right after I’ve said “its” the line went “*CLICK*” and hung up. I have no idea whatsoever who is the caller and I was not given the chance to ask him anything. Odd! what kind of people who called up and don’t greet people? How rude!