It was a bit of a hassle to do the initial setup, but after the first use it just took a couple of minutes to add air time to it.
Can't remember what company it was.
Yes, once my Sprint contract was up several years ago I switched to Tracfone & have used it ever since. I may have had to call them for help, but I did manage to get set up & I am very tech unsavvy...had to have help buying/setting up this laptop, my printer, the new antennae when we had the switch to digital (don’t have cable) etc.