Only three mobile service providers in Switzerland – Swisscom, Sunrise and Salt – operate their own mobile networks. But there are numerous additional mobile service providers which offer their own mobile plans and prepaid mobile services but make use of the physical networks from the three network operators.
Many mobile service providers are subsidiaries of either Swisscom, Sunrise, or Salt. Some are joint ventures between major retailers and mobile service providers.
Some mobile service providers operate largely independently of the three network operators, but use mobile networks for the last portion of service delivery (the connection between their fixed networks and customer mobile phones). These service providers include Quickline and TalkTalk.
The moneyland.ch comparison clearly shows which telecom network is used for a mobile plan or prepaid mobile service. You can also filter all offers based on the networks used.