1und1: This is how call number transport works

It has long been nothing special to take a number and 1und1 also offers this service. This practical tip tells you exactly how to proceed if you want to take your old number with you to 1und1.

Number portability: How to port your number to 1und1

In principle, you hardly have to worry about anything if you want to take your previous number with you to a new provider. As a rule, the new mobile operator takes care of all the formalities for you. This is also the case with 1und1.

• If you are not yet a customer of 1und1, you can apply for the number to be taken along during the ordering process. It is important that the data that you enter in the form for porting numbers at 1und1 exactly match the data that you have stored with your previous mobile operator.
• Calling numbers is possible with 1und1 during the entire contract period. Therefore, you can also port the number retrospectively to the 1und1 hotline. The service team can be reached Monday to Saturday from 8:00 a.m. to 8:00 p.m. on 02602 - 969 721.
• Alternatively, you can apply for the number to be transferred via the Control Center. Under "Settings & Services" you select the option "Take phone number with you".
• You will receive a new SIM card when you take your number with you if you do not yet have a 1und1 SIM card. The ported phone number is automatically transferred as soon as the process is completed. Until then, you can make calls with your new number from 1und1 and still use the new contract.
• Tip: If you want to take an internal number with 1und1, there is a separate form for this.

1und1: suppress new number - how it works

If you also want to take your domain to 1 & 1, you have to do the same.