I bought the sim card on ebay, the sim was brand new ( i had to detach it from the card, sorry i don't know how to call it), now i'm in italy and i tried to activate the sim on this website:
https://www.wireless.att.com/activations/ but it doesn't work.
I'm in italy now, but i need to use the sim card on december when i will go to the US.
Do you think that, once I will be there, the sim card will work?
Thank you very much.