Been using Consumer cellular for 3 plus years. No contract, use AT&T Network, their reps are all USA based and senior friendly with patience to help us figure out how to make things work. They also have great You Tube videos that take you step by step on how to use their phones and features. They do not offer the latest and greatest smart phones, but I have never found that was important. Their rates are reasonable and they alert you if you might exceed usage amount and allow you to change plans to avoid extra charges. Great company to deal with.
Check them out at
www.consumercellular.com you might be happy you did.