Can I use an iphone 4 with at&t go phone plan?

I'm using an htc vivid, which is not a go phone, on a go phone plan so I was wondering if an at&t iphone 4 would work as well. I don't care about having internet on the phone or mms. I just need unlimited call and text. Thanks.

Added (1). Nevermind everyone! I cut my sim card down and it works just fine!

I did the same thing a week ago but.cut the sim myself. But ended up selling the iphone like 2 days later. It was a 4s.