Roaming in Canada for extended period of time
My current prepaid AT&T plan “includes unlimited nationwide calls and messaging in and between the U.S., Mexico, and Canada”. I have heard a rumor that my usage outside of USA cannot exceed my usage within the USA. I am going to spend the majority of the next year in Canada. Can I use my phone with my current plan in Canada for approximately 8 months without a problem, or do I need to get a plan with a Canadian carrier?