they can call because fall under the research catagory that
and thus are not considered telemarketers

This number is listed as a teleReasercher.  If they are a ligitimate RESEARCH COMPANY then they can legally call until 10pm respondent time.  However there is a new list being created at the end of this month on the CRTC site to have your phone # blocked from TELEMARKETERS.  There is a difference.  But you should all go to the CRTC site to read the rules and regulations for having your number removed from these companies.

2nd call from this number and no one there.  Would appreciated knowing who was calling

Paul, the Do Not Call List is updated monthly. If you just registered on the DNCL, it will take up to a month for your numbe to appear. In the meantime, if you answer their call and tell them not to call you, they need to register your number internally in their own company's list and immediately cease calling. If they call again after you have spoken to soomeone from the same number, go on the DNL site and register your complaint.

Called six times in a row, after I answered the first call.

Is there a way to block this?

I live in New Brunswick now and I received a call from this number in Sask on my caller ID.  I was not home at this time and lived in Sask years ago and thought it might be an old friend calling but i looked up your site so now dont have to worry if the call was important. tks.