My girlfriend purchased the iPhone 5 with her discount and I will use it. I chatted with an AT&T rep online. He said I will need to call them and tell them the IMEI and ICCID, before I activate the phone. I can find the IMEI on the box, but where I can find the ICCID? He said there will be a card contains the ICCID in the box. I don't remember I have that card when I purchased my iPhone 4 from AT&T. Can anyone provide me with any help?