2G was introduced by Swisscom in 1993. The technology was geared to the applications used at the time, such as making calls or sending SMS text messages. Usage habits have changed dramatically since then, with mobile data traffic has increased year-on-year. The proportion of traffic transmitted via 2G fell steadily and was less than 0.03% by the end of 2020.
In January 2021 Swisscom began to remove the last remaining 2G devices from the network, and in mid-April 2021 it finally switched off the 2G technology. Swisscom had been updating customers about the impending switch-off and supporting them with the transition to 4G-enabled devices since 2015.