O2: Activate SIM card

What you need:

• SIM card
• mobile

It's that easy to activate your o2 SIM card

You are a new customer at o2 and have one Mobile phone contract closed. Activating the SIM card is very easy.

1. You go to the website of o2 - activate cellular card.
2. the activation the SIM card at o2 can be done quickly and free of charge.
3. The first thing you need to do is enter the card number. You can find this in your letter at the top left, which was sent to you with the SIM card.
4. You enter your card number in the section provided. You must enter this without a hyphen or spaces.


Activate o2 prepaid - this is how you use your new card

Before you can use a newly purchased prepaid card from o2 in your mobile phone, you must ...

5. Then enter your personal customer identification number. For this you need your mobile phone contract from o2. Your personal customer number is under point 1.
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6. You continue with the given security check, which you transfer to the empty field.
7. Just click on the "Activate now" box and your o2 SIM card is ready for use.

This is how it works with an existing contract

You have ordered an additional SIM card for your existing mobile phone contract or would like to replace your old SIM card. How to do it:

1. You enter your mobile phone number or your username in the field provided.
2. Then the security check takes place. Enter the given letters in the free field.
3. Now click on next - and the SIM card will be activated.
4. If you have forgotten your password, click on the corresponding button. Enter your cell phone number. Then the security check comes again for you.
5. You have to enter your contract number, which you can find at the top of the mobile phone sales contract.
6. Then you will need your personal customer identification number of at least four digits and then a password. You have to repeat this in the last column.
7. The confirmation of your new password will now be sent to your entered email account.