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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 card or eSIM online.

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. 

Order a new SIM card

SIM card

If you require a new SIM card for your main or additional device, simply order it online. 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. If you lose a device, you can have the current SIM blocked when you order the new SIM.


If you have an eSIM-compatible device, you can order an eSIM free of charge. Your benefit: There is no waiting time because a SIM card is no longer required. You receive the QR code with your new eSIM profile as soon as you place your order and can retrieve and activate it any time in My Swisscom.

How does the eSIM work?

The “e” stands for “embedded”. This means that the SIM is integrated into the device and the eSIM chip is built into the device by the manufacturer (Apple, Samsung etc.). Swisscom subsequently uploads the eSIM profile to the device, including data about the subscription or telephone number. In the longer term, the eSIM will

Would you like to activate an additional SIM for your additional device as part of your subscription? Order a new eSIM or multi device SIM card via Multi Device.

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. Alternatively you can go to your smartphone settings, select “Mobile phone/mobile network” > “Add mobile phone tariff” and scan the QR code this way. Video tutorials: iPhone or Android-based mobile
  2. You will now receive an SMS with a link. Click the link to confirm the activation of your new SIM. Alternatively, you can activate your new card in My Swisscom. This deactivates your old SIM.
  3. Restart your mobile phone.


Can I order a replacement SIM from abroad?

How much does a new SIM cost?

How does WhatsApp work with the eSIM or dual SIM function?

How do I switch from my old phone to the new iPhone with eSIM?

Which smartphones can currently be activated with a Swisscom eSIM?

How do I use the dual SIM function with an eSIM?

What happens to your eSIM profile after a device reset?

Do I need a SIM PIN for my eSIM?



Do you have questions concerning our products?

We will help you via telephone or chat.

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