Need a phone with internet while in the US 3 months

[Yellowtail]

6 hours ago, bendejo said:

Another is Tello, which may be slightly cheaper than Mint and has a good reputation.

The important thing when installing one of these SIMs is your phone has to be UNLOCKED.  This unlocking business is a topic all its own, my guess is it may be easier (and cheaper) to have this done in LOS.  Bear in mind N America uses different carrier frequencies than other parts of the world

http://allworldcellphones.com/gsm-frequencies-list.htm

 

If you care to delve into this stuff, here's a good place for such discussions

www.howardforums.com

Are not all phones sold in Thailand with removable sims unlocked? 

 

I know Mint (and I assume all the providers) has an option on their website that will check the compatibility of your phone.