i just use tracfone.
as i only use my phone for phone calls, [] that works ok for me.
the $100.00 yearly plan works out to $8.34 per month, so it's cheap.
i don't travel far from home, so i can't say what the service is away from here, but it works great here.
i just have a cheapy flip phone from wally world, and it's still "smarter than me"........