US AT&T Prepaid SIM Product Summary
1) Most widely used SIM in the US: Reliable, Fast Data and Good-Coverage Network
2) Best network compatible with foreign phones.
3) Great prepaid options that give unlimited local calls & SMS:
- USD$30 - no data
- USD$45 option gives 6GB data
- USD$65 option gives 22GB data (capped at 3Mbps/no tethering)
Both the USD$45 & $65 plan roam for free in Canada and Mexico (ie you can use the calls/sms/data there). Only USD$45 plan can tether/hotspot on AT&T.