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.
Have gotten called by this number several times...no message on my cell phone also...this is very annoying! I am going to block the number through my carrier. I am also on the DO NOT CALL LIST. What a load of crap that this person can call so many times! It should be illegal...should be considered harassment!
Got a call from this number and some morbidly obease person (I'm purely guessing here, but since she (at least I think it was a she) was out of breath and sounded like she had a mouth full of marbles, I think the odds are good that I'm right) claimed they were doing some CDC survey. After having to ask her to repeat herself about 4 times, I just said: "I'm sorry, but I don't speak ebonics, and with the economy the way it is, I can't afford to spend the time trying to translate." Strangely enough, she hung up shortly thereafter.