Talk:United States/@comment-195.195.176.7-20170210195448/@comment-27066773-20170210214718

Hi! You should choose GSM compatible networks - AT&T or T-Mobile (or any of their resellers). You should activate your SIM card in the US. If you buy a T-Mobile SIM card, you can activate it online.

If you want to buy and get your USA SIM card before arrival to US, look through eBay.

Also you can use some roaming offers from other countries if you don't need US phone number.