At Sunrise the contract term is the decisive point. The portfolio mixes monthly cancellable plans with 12 and 24 month contracts. So check first which term applies to your specific plan, because that determines whether you can leave immediately or only at the end of the term.
You can cancel in the Sunrise customer portal (My Sunrise), by phone or in writing. If a minimum term is still running, the cancellation usually takes effect at the end of that term.
Price change at this provider: our report →Number portability is free in Switzerland and usually takes 1 to 3 working days. Important: do not cancel yourself if you want to keep your number. Register the port with the new provider, who handles the cancellation. Anyone who cancels first loses the number.
These providers run on the same network but cost less. Coverage and 5G are identical, and the order follows price alone.