I'm not IP banned right now. My account is "banned" permanently. So i'm not really sure what that means. So now i'm guessing i can just go ahead and sign back up? lol but I want to do in inconspicuously. That's why I changed my IP.
You might find a better practical approach would be to contact whoever banned you and politely request to have the ban lifted - if necessary apologising for the reason you got banned in the first place. If it was me a genuine apology would go a long way, certainly a lot further than sneaking back in and hoping no-one notices.