So can you get a SIM card at SFO to use in both Canada and USA? I thought I'd share as after lots of searching I wasn't able to get a good answer. The answer is yes you can get a Prepaid SIM card kit in the international airport. Just after security there are two vending machines, one for BestBuy and the other AT&T. The AT&T one has GoPhone kits and recharge Top ups. We got two starter kits for $10.98 each after taxes. The kits cater for nano, micro and standard size SIM card requirements. We used the * and # type codes and the refill numbers we had organised previously. Had we not already has the recharge amounts the vending machine would have been good to use. The instructions are in the Getting Started guide otherwise just use: Use the phone dialler and dial *888* + Refill card PIN number + # (example: *888*1234567899874#) Press Send. To use the vending machines was just a matter of swiping a credit card so no need to get a US credit card. Here...
Thoughts and mutterings from @vontweeter