AT&T go sim card. That's what I am using as I type this on my iPhone going to mnsshp
You need to download the AT&T data settings and install them but it's really easy
Despite activating my sim before we left in a non-iPhone, my (both) iPhones refused to work with the AT+T sim when there and after a day of dicking around I gave up on the idea
Despite activating my sim before we left in a non-iPhone, my (both) iPhones refused to work with the AT+T sim when there and after a day of dicking around I gave up on the idea
I used a website www.unlockit.co.nz it has an option to e-mail the settings to you, when on the plane I changed sim cards to my AT&T one and installed the settings (it is really simple), once cleared customs turned on the phone and it worked a treat