I discovered that the Sierra AirCard 803S can no longer be activated on the Sprint network, nor on any service provider that uses the Sprint network. I was using one on FreedomPop, but when it was ported to Ting, it stopped working and never got beyond the "Powering up" screen when it was turned on. Even after I deactivated that hotspot on my Ting account, it still does not get beyond the "Powering up" screen. Out of curiosity, I logged on to the Sprint web site to see if the hotspot could be activated. I was prompted to enter the MEID and then the ICCID, after which there appeared a message that the ICCID is not compatible with the MEID. I thought that might have something to do with it being set up for use on FreedomPop, so I bought another AirCard 803S, with a Sprint logo on it, on eBay for $10. When I turn that hotspot on, it gets past the "Powering up" screen and finds a 3G signal with a strength of five bars. Encouraged by that, I went to the Sprint web site to see if it can be activated. After entering the MEID and the ICCID, I again got a message that the ICCID is not compatible with the MEID. I opened a chat window, said I wanted to activate the hotspot, and was informed that this hotspot is no longer compatible with the Sprint network and cannot be activated. I was then invited to check out their new compatible hotspots, which start at around $240. Apparently, Sprint prefers to render perfectly good 3G/4G LTE hotspots obsolete so they can sell new expensive hotspots. That explains why so many AirCard 803S hotspots are listed for cheap on eBay.
Sierra AirCard 803S is no longer supported