Broadband atlas
The broadband atlas shows the broadband network coverage situation in Switzerland. The maps provide information on both fixed network connections and the availability of mobile communication networks.
The broadband atlas is an interactive application composed of 17 maps: 14 describe fixed network coverage and 3 describe the coverage of mobile communication networks. The Broadband Atlas is updated twice a year.
The fixed network maps provide information on upload and download speeds, the types of connections available (copper, coaxial cable, fibre), as well as the active providers in the displayed area. The information is published in aggregate form in grids with a resolution of 250 m x 250 m.
Mobile communication networks are represented by four maps showing the expected availability of 3G, 4G and 5G networks for each 100 m x 100 m grid.
The participation of network operators in the broadband atlas is voluntary. Service providers who did not provide data are not featured on the maps. Participating service providers are responsible for the accuracy of the data they provide to OFCOM.
Notes on fixed broadband coverage :
- Starting with the update in early June 2026, the Broadband Atlas is being enhanced to better reflect the actual broadband coverage of fixed networks. The calculation methodology is being adjusted so that only buildings containing residential or business units will be considered in the future. Buildings without residential or business use (e.g. barns and garages) will no longer be included.
- This methodological enhancement takes place in the context of the nationwide rollout of fibre-optic infrastructure and the gradual decommissioning of the copper network, as well as the recent extension of the Federal Register of Buildings and Dwellings (RegBL) to include buildings without residential use.
- The change to the calculation perimeter directly affects the published coverage rates. These rates will generally be higher, as only buildings that are actually relevant for access to broadband services will be included in the calculation going forward.