Cell service will depend greatly on where you are at. I use sprint which got bought by t mobile recently. I’m not sure if I’m on sprint or t mobiles network (as there’s no way I can figure out to tell for sure) but coverage has improved a lot lately which I’m guessing means that I’m using t mobiles towers. Speeds are fine for me to make/receive phone calls and steam music, although I tend to download most of my music/podcasts while I’m on wifi.