I am on day three of my mini-snowbird adventure. I have been monitoring all three of my hotspots while traveling US 56 across Kansas, Oklahoma and New Mexico. AT&T provided a nearly continuous signal. Verizon showed a signal, anywhere from 1G to 4G much of the time. Sprint seems to work only in major metropolitan areas--in other words, zero signal much of the way. just my observations--your mileage may vary.