If you lose your mobile phone, block your SIM online in My Swisscom (Customer Center) or by phone. This stops anyone from using your mobile phone to make calls on the mobile network and incurring costs. You can unblock the SIM again at any time in My Swisscom.
If you use Prepaid, your SIM can only be blocked online if your device was registered in My Swisscom before it was lost. If it is not registered, please call Swisscom.
If your device is stolen, please report the loss to the police. To do so, you need your device’s IMEI number. You will find this in My Swisscom. Select the mobile subscription for the stolen device and go to “Devices & SIM”.
The easiest way to order a new SIM card is in My Swisscom, if you have lost your mobile phone or you wish to use a mobile ID and need a more recent SIM for this, for instance.
If your device supports the eSIM function, you can also switch to an eSIM. You will keep your current telephone number and switching is free of charge.
Once you have received your replacement SIM, proceed as follows: