Got about 8 calls today from this number. Tried looking it up through reverse lookup but got mixed results. Not sure if it is real or not, but I don't answer calls unless the machine gets it first anyway. The phone rings 3 times and then hangs up. My machine kicks in at four rings. According to the Web, the 815 area code belongs to someone in western Illinois just southwest if DeKalb. Google satellite images shows a few small businesses there, but since I don't want to spring for the lookup, I wasn't able to get any more information. I am on the phone with ATT right now in hopes of putting a halt to this nonsense.