This comes up as a Joliet, IL number on my caller ID but when I finally answered and had a conversation with the person was told they were in a time zone an hour behind me. I am in the same time zone as Joliet. The person calling was from Santana Energy trying to get me to sign up with them as the main provider of my gas through Nicor.

This number repeatedly keeps calling. I answer, no answer. Through voicemails it's a blank response. I call the number back, it says it's a disconnected number, or a non working number. I don't like that. If it's a telemarketer or some sales person of some sort, they would have answered. It's a bit strange, but I wonder if this number works different for others.

Got the same line about Santana and lower natural gas bills.  Guy was rude too, tried to scold me for interrupting him.  Ha - he's the one being a pest.  Hung up on him too.  Take that for scolding me.