Sorry to ruin your day but the national immunization survey is exempt from the national do not call list do to the fact it is a federal government agency the CDC can call you anytime it is a federal agency sorry for the bad news.
I have received 7 calls from this number in less than a week 1-2 calls a day. they left 1 message stating they are doing a survey on families with teenaged kids, who said I even have kids?????
I 2 have gotten 2 calls from this number the first time my bf awnsered because I dont like awnsering calls for numbers I dont know. Suposedly my cell phone number was picked to be part of a cell phone survey(which is a bunch of crap) he said he wont awnser anyquestions and that this number was on the DO NOT CALL list then he hung up.. that number called me a second time this week just a little bit ago but since I didnt know the number I didnt awnser...