Block all phone calls from US

Hi,

Is there a way to block all calls from US. We are getting at least one call a day, and the numbers are each time different. There is always the same recorded message about the google posting. After researching online it seems that many people are getting the same type of calls.

Since we don;t have anyone in US, the easiest would be to block all incomming calls from the US. Can Videotron do this for our phone#?
Thanks.