No, the minutes from your International Calling Plan do not roll over. You can use your calling allowance on one destination or spread it across multiple countries. Once that allowance runs out, you can still call any of the unlimited destinations included in your plan—those remain available even if your calling capped allowance is fully used. Your monthly international calling allowance will be renewed every month on your mobile bill cycle date. International calling allowances do not roll over from one month to the next.