Here is a record of the calls I have received from SSI and never answered:
801 899 4166 (on 10/29/14, a few minutes before 9 PM)
608 424 2331 (on 8/24/14 and 10/9/14)
608 424 2200 (on 5/22/14, 8/24/14, 8/25/14, and 8/26/14)
This is SSI Survey Sampling, a marketing research company. To get removed from their call list: URL is http://www.surveysampling.com/.
Keep in mind that if they do not place you on their internal DNC list, they can still get into trouble. As a rule, survey's are exempt from the DNC though. Do consider maybe getting a call blocking device or phone.. You can google them and many are around $50.00 or under.If its a cell phone, some already have call blocking, if not, there are free apps on the web that will work for some. You can google this. If you have a smart phone, there is a free app called call control. Iphones appear to have apps also. Another one is called Mr. Number.