Accidentally called phone number for 3rd party or scam ATT internet setup

I really messed this one up. I called 866-928-5126 which is a number that came up on google when I searched to transfer my internet to my new address. The call should have made me suspicious but I have worked in a call center before and at times had to verify customer accounts if it wasn't pulling up. Anyway, I was such an (Edited per community guidelines) and gave out my social, my AUTO payment term length, and some basic att info. At this point I knew something was wrong but apparently an appointment was scheduled at my new address for delivery. I contacted ACTUAL Att and have a real appointment set up now for a different day and thery have no record of my interaction with the fake att. I don't know how to proceed besides changing my passwords and pins. I was a fool,  but need help now. Thanks.