T-Mobile and Sprint have merged to become a company in April 2020, but Sprint’s old network still exists to support older devices. That could change soon, because a notice sent by T-Mobile to its professional customers declares that the Sprint CDMA networks will be closed “around or around” on January 1, 2022.
Phones with voice over LTE (VoLTE) support will continue to work with T-Mobile and Sprint. This change only affects older CDMA-only devices that do not support 4G LTE. If you see an LTE icon at the top of your phone, you’re fine.
Looks like the CDMA shutdown day for Sprint is 1/1/22 or so, according to this letter I received from T-Mobile.
I’m curious how much of Sprint’s LTE network will be online at this point. Betting that on 01/01/22 it will be the PCS G block plus B26. pic.twitter.com/dMan26HLox
– Ian Littman (@iansltx) December 27, 2020
But if you’re nostalgic for your old Nexus, you better start using it now. T-Mobile and Sprint will stop activating CDMA-only phones on January 1, 2021. You need to activate your old phone before 2021 if you want to use it for a year last year.
We should expect to see more legacy networks shut down as carriers move to 5G. T Mobile and Verizon plan to shut down their 3G networks by January 2021, and AT&T aims to end 3G service in early 2022. The average person won’t notice that 3G is gone, but people using older devices will need to upgrade.