The TMo Report has posted (link below) leaked screenshots that show T-Mobile will be shutting down the Sprint LTE network on June 30th 2022, and confirms the Sprint 3G CDMA shutdown of January 1st, 2022.
It also confirmed T-Mobile will shutdown it’s own 3G in October 2021, and it’s 2G in December of 2022.
“Now that Sprint is T-Mobile, we’re combining Sprint’s assets with T-Mobile’s to deliver a transformative 5G network experience from big cities to small towns and everywhere in between, and we are moving quickly to build our most advanced network ever for our customers. To accomplish this, we will retire the Sprint CDMA and LTE networks to free up spectrum that will help us strengthen our entire network and move all customers to more advanced technologies like 4G & 5G.”
T-Mobile also stated that on July 7th they began sending out network updates that force-enabled VoLTE on Sprint devices, even if it had been manually disabled.