Just got a call 1 minute ago from this number on my cell. I did not answer it. They did not leave a voicemail.
Obviously up to no good.
Caller: 773-593-0992

Call my cell and did not leave a message.

Missed call.  No message.

Calling to reduce interest rates on credit cards, telling me iris my last chance to save.  I have no credit card debt

FInally answered this one just to tell them to remove my info.  It's an automated dialer with a recording for an offer to "...lower your credit card rates".
I pressed 1 to get to a live person.  I waited through a long gap between ring and the guy finally talking.  From what I could understand through a very heavy accent, he started his spiel, but was saying someone else's name and information instead of mine.  As soon as i interrupted and asked how to be removed, he hung up.

Multiple call backs all went to a fast busy intercept.