Replace and activate SIM

Replace and activate SIM 

Order a replacement SIM card

You can simply order your new replacement SIM card online in the customer center: 

It doesn't matter whether you order a Mini, Micro or Nano SIM in the customer center. You will get a so-called "3 in 1" Sim card, from which you can quarry the right SIM size out. Help with the SIM selection

You will need a replacement SIM card in the following cases:

Your current SIM is damaged or has been stolen (with your phone).

You change the device: your current SIM does not fit into the new phone, because for example it requires a Nano SIM or an eSIM.

In addition, itt may happen that we send you a new SIM card, i.e. for technical reasons or when new services like Mobile ID are offered.

Order a prepaid replacement SIM

  • You can not order a replacement SIM in the customer center. Please visit a Swisscom Shop near you or contract our customer service.  
  • Your credit balance won't be deleted when you replace the SIM. 

Activate replacement SIM

Read letter

  Read the informations you have received with your new SIM. Thus, you may for instance see if in your case specific steps are required in order to activate the SIM.

Save contacts

  Copy the contacts of the current SIM on your phone. Instructions 

Save data

  Save data: make sure you can still access the data currently on your old device (photos, contacts, etc.), when you change device, by saving them for instance on myCloud, Google Photos, iCloud  or PC/MAC. 

Insert SIM 

  Insert the new SIM in the SIM compartment of the new device. Instructions

Confirm replacement 

  You will now receive a SMS with a link. Click on the link in order to confirm the activation the new SIM. 


  Restart your device.

Frequently asked questions

Which SIM size do I require?

What is an eSIM?

How can I gift/sell a device with an eSIM?



Do you have questions concerning our products?

We will help you via telephone or chat.

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