AT&T's 2G network has finally shut down. The carrier says it turned off the network on January 1, with one of the only notable impacts being that the original iPhone no longer has cellular service. AT&T began planning the 2G shutdown years ago.
Now that effectively everyone is using 3G and LTE-ready devices, turning off 2G isn't something that really hurts consumers. AT&T says the network was just using up resources and spectrum bandwidth. Those resources may be useful when 5G rolls out.
The 2G network was live for a decade.