T-Mobile's 2G network has finally been decommissioned (via Android Authority). We don't think anyone will miss itWe first reported the 2G network closure back in February 2025, but found that the timeline was pushed back a few times. If you've never experienced a 2G network, it was fairly primitive. AT&T shut down its 2G network back in 2017. I didn't even really think 2G networks were still a thing in 2026.