Who called from 2175223522

It's a call from a union group that reps AFSCME. Someone gave them your number or they wouldn't have it

Area code is Champaign area.

I get calls from this number, but they never leave a number, and a couple times I answered and they hung up.

Received a call from the 217-522-3522 Checked it out on yellowpages.com and it listed a gentleman in Springfield. Looks like it might be a landline. Also called the number back and got the same result as the others did.  Also checked out allareacodes.com

Alleged political call. This time I answered, the man said he's calling about a governor survey. I said, not interested.
I don't know the man, anyway, not interested giving personal information.