Xfinity Mobile plans come with no contracts. It’s pay-as-you-go, with no commitments, which is a double-edged sword. The ...

Mint Mobile offers free roaming in Canada but what about Mexico? It's not free, but you can certainly pay for access.

Unfortunately, if you're looking for prepaid internet service, your options are limited. NOW is CNET's pick as the best prepaid internet plan overall ... pay-as-you-go pricing.