Prepaid SIM Card USA has unlimited data. You can use this data in all 50 states (except Alaska). Use up to 7GB to hotspot other devices at 3G speeds. US SIM Card uses the T-Mobile Network. US Mobile SIM Card comes with an American phone number which can be used to make unlimited calls & texts to USA numbers while you are in the USA. Free incoming calls. The plan on the USA SIM Card is valid for 60 days. Please send an activation request at a day before your desired start date. Your simcard USA will be activated in the Pacific Standard Time Zone. This can take up to 24 hours. Prepaid SIM Card USA has standard, micro and nano SIM card sizes. Theses can be used iOS & android mobile devices. You may not have optimal coverage in rural areas, national parks, and outlying areas. To top up your Data SIM Card USA, please send us an activation request at least 2 days before the plan expires. Customer service available in English, French and German. Avoid roaming fees, unsecured wi-fi hotspots and the inconvenience of looking for a SIM card at your destination. Get a prepaid USA SIM card before your trip