Xfinity Mobile and Spectrum Mobile each use Verizon's network while Optimum uses T-Mobile. Xfinity Mobile, Spectrum Mobile and Optimum Mobile could be options, depending on where you live. We have a list of a few of the major alternative providers and which networks they run on broken down here. In these cases, downloading either of the two apps above could be a quick and easy way to try out T-Mobile or Verizon's coverage in your area before you switch. Mint Mobile, for instance, runs on T-Mobile's service, while Comcast's Xfinity Mobile and Charter's Spectrum Mobile use Verizon. When it comes to prepaid carriers and mobile options from cable companies you should also check to see which network they are using. Read more: Best Unlimited Plans From Verizon, AT&T and T-Mobile Using Visible's similar program, you can try out its parent company Verizon's network. You could also go to a carrier's store and see if they offer any free ways to try out the service before switching over, such as T-Mobile's Test Drive. If you know any friends or family in your area that already use the carrier you're considering, ask about their experience. It's quite possible that, a decade ago, you left a network complaining about its sparse service, but now it's been beefed up because of that race to acquire customers. While your mileage may vary, the good news is that these networks are growing and improving all the time, particularly as the three major players race to blanket the US with 5G. T-Mobile's service in New York may be excellent, but if you're in rural Iowa, Verizon could be more reliable. The complex geographic variables across the US make it hard for us to give a blanket recommendation of any one carrier. Cutting costs won't help if it means the service won't work.

To get the best deal, you need to make sure you have the coverage that you need. Read more: Best Prepaid Phone Plans Know your area and which carrier runs on which networks

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