Block, re-order and activate a SIM card

On this page:
Find out how to block your SIM (e.g. if you have lost your mobile phone) and how to order and activate a new SIM.

Block SIM

If you lose your mobile phone or additional device you can easily block your SIM online in My Swisscom (customer centre). This protects your device against misuse. Set up Call forwarding in My Swisscom so that your contacts can still reach you. If you cannot block the SIM online, contact us here.

If your device is stolen, please report the loss to the police. To do so, you need your device’s IMEI number. 

Display IMEI number(opens in new tab)

Order a new SIM card (online free)

If you require a new SIM card for your main or additional device, simply order it online and free of charge.

SIM card

You can pick up your new SIM card at any kiosk or Press & Books (no reservation required) or have it delivered to your home address by post within 3 working days.


When you order, you will receive a QR code with your new eSIM profile. You can activate and use your eSIM immediately. This avoids waiting times and you no longer need a SIM card.

If you are still using your SIM card in an Apple or Samsung device, you can easily switch to the eSIM directly from your device.

Go to instructions

Activate new SIM card

  1. SIM card: After receiving your replacement SIM, insert the new SIM card into your device's SIM slot.
    eSIM: After receiving your eSIM profile as a QR code, scan it with your smartphone camera app  and follow the instructions. Make sure that you are connected to the Internet. Video tutorials: iPhone(opens in new tab) or Android-based mobile(opens in new tab)
  2. After inserting the new SIM card or scanning in and setting up the eSIM, the new SIM will be activated automatically within a few seconds. Alternatively, you can activate your new card in My Swisscom(opens in new tab). This deactivates your old SIM.
  3. Restart your mobile phone.


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 want to use another SIM for an additional device such as a smartwatch, you can order a new eSIM or Multi Device SIM card via Multi Device.

With the eSIM (embedded SIM), the SIM is integrated in the device, so you no longer need a SIM card.

More about eSIM

A SIM card cannot be dispatched abroad unless by arrangement with us. However, an eSIM can easily be ordered and activated online because there is no physical card to supply (subject to change).

Please note that, when you are abroad, it needs to be activated in My Swisscom(opens in new tab) and will not activate automatically.

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