o2: change number - how it works

When concluding the contract, you can request a mobile phone number from o2. If you want to change them later, you either have to pay a fee or dig deep into the bag of tricks. We'll show you both ways.

Change mobile phone number at o2 for a fee

As a contract customer, you can have your phone number changed at any time. That currently costs you 29.99 euros. This option is currently not available for prepaid users.

1. To do this, call the o2 customer service and request a change of numbers.
2. You can usually choose between different numbers here.
3. As soon as o2 has initiated everything, you will receive a confirmation via SMS. Your new number is now active.

Insider tip: change the number at o2 free of charge

If you don't want to pay money to change the number, you have to do something tricky. You can apply for a new number using a free SIM card and then import it into your existing contract:

1. Open this website from o2 and book the free loop contract.
2. After a few days you will receive a SIM card and your contract with a new number by post. Alternatively, you can also purchase the loop free ticket in an o2 shop.
3. Then log in to o2-online with your old contract data and click on "My o2".
4. Scroll down a bit and under "Additional services" select the option "Take phone number with you".
5. Then click on the "Go to exchange form" button and enter your contract details there.
6. Complete the process with "Send". After a few days you will receive a confirmation of the change of number by SMS or post.

So that your new number is not lost, you should renew your contract in good time.