I have been getting these calls as well.  I am also on the National Do Not Call List and I have an unlisted number.  We are in Newfoundland and I have had this number call my house on a number of different occasions.  Won't leave a message.  I just refuse to answer this now.  They called at 10:00am on a Saturday morning.

Didn't leave a message here either...(even a blank - that new form of telephone harassment) A sure mark of a scam or a telemarketer.

This one didn't leave a message when my machine picked up.I rarely receive these calls, but if I accidentally answer a number I don't know, the calls start up again very frequently. They probably sell 'time of day & use' information to others.Weird thing is: my land-line corded phone rarely shows names or numbers, while for the same call my cordless landline sometimes shows half the info or unknown name- unknown number, while my 'on TV display' will show a name or phone number  that the phones don't. ..So if I don't memorize what was flashed on my TV, I can't even track it. I try to ALWAYS screen. And tell anyone I give my number to, to leave a message. I wait to recognize the caller before picking up.

I agree they are not from Canada.  I gave the idiot the info belo and he took it all in....I told this idiot on the other end my name was Adolf Obama. Address 469 Tahrir Square, Vancouver, Nova Scotia. G1Q 1Q9.  The number I gave him??? You guessed it, (403) 255-8807.  Hook line bait and sinker, he took it all into his computer. Lovely.  Keep these idiots on the line and waste their time and effort.  Don't get mad or angry, look at it as entertainment. God speed and good luck with what is ahead folks!

get yourself one of those air horns, they don't call back  :)

Contact your phone provider, many will block numbers for you.