I just called it back, and yes, they claim to be a SAT assistance. There was a prompt to press 2 if you wanted to automatically be put on the "do not call list". I pressed 2, and a recording said that I was added to the list. We'll see if it works.
Unidentified by caller ID. Did not answer. Above comments indicate SAT assistance with a big price attached. My daughter did not request. She's 1st in her class and doesn't need this even if it were not a scam.