I just received a second call (didn't answer the first) from what read on my phone as "Autistic Awareness 1-832-210-9150. I answered and was given a long talk by a woman on what autism is and how much they need my money. I assumed it was a scam because I received a similar call a few weeks ago from a charity that turned out to be a scam and they probably sold my number to "Autistic Awareness." I told the woman that it was a scam and not to call me again, and she hung up. I had not read your advice, and I realize that I should not have answered and will not do so again. I can find no charity named "Autistic Awareness."
Mr. Number says this is not a legitimate ph no. That and the fact that they use different stunted IDs on different calls makes me very doubtful this is a legitimate caller. Most likely to be a scam.