who is this number belong to

I have multiple 'faxes' to my business number.  I've called rogers about it and they told me they can't block these callers, even when I tell them the exact number and the caller ID.  This is just awful phone service...

Someone claimed they were form a company whose name I cannot remember, and that I was entered into a draw to win $25 000 and a car. The woman knew my name and asked me what year I was born. I had suspected that something was up, so I just said a random year. She then proceeded to ask me for my American Express number. I have never had an American Express, but I told her that mine was no longer in use, as I had cut it up. The woman quickly ended the conversation after that.

some guy wanting to fix my computer

just 2 rings - I didn't have enough time to pick it up, no msg