Things we learned while driving through Canada to Alaska

As indicated above if you have a Verizon phone that is CDMA (not their world phone) you will be out of luck here in Canada. We have an AT&T SIM card that slips into our Canadian GSM phone and AT&T pairs with Rogers here and the US SIM card works here. I understand that other US providers are also GSM with the exception of Verizon. GSM is the world standard (just like metric!).

Some CDMA is still around in some cities here but you will be lucky to connect with a CDMA phone