T-Mobile delays shutdown of Sprint 3G network by three months.

T-Mobile continues to update its network to 5G, but Sprint's 3G network has a few more months before it's taken offline. The carrier originally planned to shut down its antiquated network on Jan. 1, but it appears one of the company's partners needs more time with Sprint's 3G network. The 3G network will stay up until Mach 31, 2022, T-Mobile said. The company says the three-month extension is due to some of its partners that "haven't followed through on their responsibility to help their customers through this shift." T-Mobile didn't say which partner, but we lookin' at you, DISH. Dish has taken issue with the Jan. 1 deadline. Dish owns Boost Mobile, which still makes use of Sprint's 3G network for its customers. The company said Boost customers could lose their service on that date, and Dish chairman, Charlie Ergen, said T-Mobile has "become the Grinch."