I will travel to Alaska on 7 Sep 2015 for around 1 month. Due to the need of calling back to my home place and get internet access in Alaska, I wish to select a plan to solve this.
Since my friend has travelled to USA last year and buy an extra AT&T SIM card (new, not activated yet, but marked with a small logo of “3G”), therefore, I have a new AT&T SIM card ready for activation.
Could I use this SIM when travel in Alaska? Or this card is too old and must buy a new one?