Who called from 3012330109

Another of those annoying anonymous calls.  All caller ID said was ADA. I'm open to suggestion!

Have received 7 calls for the past 7 days from ADA all with different phone nos. and area codes - report each one to do not call and they continue

ADA = American Diabetes Association  

I called the number back and there was a recorded message telling who they were and giving the option to take your number off of their calling list.