Blocking, replacing and activating your SIM

Lost your phone? Learn how to block your SIM card or eSIM, order a replacement SIM free of charge and activate the new SIM card. 

Blocking a SIM

Block your SIM online in My Swisscom.

Turn on call forwarding so that your contacts can still reach you.

Setting up call forwarding

What to do if you’ve lost your phone or it’s been stolen: 

Block your SIM online in My Swisscom.

Video tutorial: blocking a SIM (in German) 

Turn on call forwarding so that your contacts can still reach you.

Setting up call forwarding

Stolen mobile? Report the theft to the police and give your IMEI number(opens in new tab).

Ordering a new SIM (free online)

If you’ve blocked your SIM, you can order a replacement SIM online free of charge.  

Order a replacement SIM free of charge online.

For security reasons, we do not deliver SIM cards abroad. We therefore recommend that you switch to an eSIM, which you can also order abroad via My Swisscom(opens in new tab) and activate immediately.

Activating a SIM card 

How to activate your new Swisscom SIM card: 

Open the SIM tray and insert the new card. 

The SIM is usually activated automatically. 

iPhone: Hold the side button + volume button ​ slide to switch off ​ switch on again

Android: Hold the power button ​ tap "Restart" or "Power off" ​ switch on again

Activating an eSIM 

How to activate your new Swisscom eSIM: 

After ordering, you’ll receive a setup guide. Make sure your device is connected to the Internet. 

Once set up,  the eSIM card is automatically activated. 

iPhone: Hold the side button + volume button ​ slide to switch off  ​ switch on again

Android: Hold the power button ​ tap "Restart" or "Power off" ​ switch on again

Replacing a SIM card 

The process of replacing your SIM varies from device to device.

Want to switch from a SIM card to an eSIM?  

FAQs

We add the CHF 40.– activation charge for a new SIM card to your mobile bill. There is no activation charge if you order online. We provide you with an eSIM free of charge.

If you need additional SIM cards or an eSIM for additional devices, you can order these via Multi Device.

Report the theft to the police. We also recommend you take out an Easy Protection insurance policy. 

Get support

Manage in My Swisscom

Manage your Swisscom products and services in your personal account.

Arrange a callback

We will call you.
Now or at a time to suit you.

Chat with Swisscom

Chatbot Sam helps you instantly. If Sam can’t help, a Swisscom employee will take over.

Möchten Sie etwas bestellen?  Wir beraten Sie