Got 8 calls from this number. Called this number back. Asked why this company had called me without leaving a message, also advised that my number was on the Government No Call List. The person stated this was Knowledge Networks and they were trying to do surveys, not selling anything, therefore the Do Not Call Lists do not apply to them.
These people have been calling daily at various times over the last couple of weeks; but no earlier than 9am or later than 9pm. They don't leave a message and if you turn off your machine, they don't hang up very quickly either. Very annoying. Sooner or later I'll have to answer and tell them not to call.