Tello is an excellent budget-friendly mobile virtual network operator that offers a lot of great features that the big guys don't offer. The only thing that I would improve is to include taxes and fees and add domestic roaming. If you're on a budget or just want a simple plan that you can customize to your liking, then I highly recommend Tello.
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Tello is a telecom provider launched in 2016 on the US market with a strategy focused on low rates, no hidden fees, customizable plans, prepaid services with no contract commitments, and great customer care.