How long will 4G phones continue to work?

T-Mobile announced that it will finish shutting down Sprint’s 3G CDMA network by March 31, 2022 and Sprint’s 4G LTE network by June 30, 2022 .

Answer: Yes. If you’re among the 86 percent of the population who are concerned that the recent rollouts of 5G networks will make your 4G cellphone obsolete, there’s no need to worry. 4G phones still work on a 5G network , they just won’t get that coveted 5G speed.

In Summary: Prepare for Change. Within the U.S., it’s reasonable to assume that by the end of 2022 there will not be a single major carrier supporting 2G. The same fate awaits 3G. 4G LTE operates under a different scenario, and we can confidently say that 4G will be around for at least another decade .