Called my office. When answered it was a robo call saying they could save us lots of money on our energy bills.  Have gotten this same call multiple times from different spoofed numbers. it si not ComEd or any reputable energy company.  They are just trying to get you to give them your information. Do not do it! Hang up!

If you call the number back all you get is a woman's voice saying "If you would like to be placed on a do not call list for the number that called you please press 1." No busoness name and nothing afterwards if you do not press 1.

thanks,
I told them to call back in an hour while I looked for my bill to get the account # they wanted, then I  googled their pn# from my caller ID.  Naturally I won't be answering the phone when they call back.

Robocall.  Claiming to save money on electricity supplier.  Very aggressive.

They call at least twice per month and it show up on caller ID. When I am bored I answer it because you can really string them along for about 15 minutes then tell them to sod off. They really get pissed and call right back, of course I don't answer.