You would like to switch to a different service provider and keep your current phone number? No problem, just take note of the following requirements for a successful mobile number portability.

1. Cancel your current contract and request immediate portability
You should end your current plan in time, so that you don’t have to pay for two phone plans. Once you have cancelled the contract, you can take your phone number to other providers even 120 days before your contract actually ends. If your contract has already ended, you can take your number to another provider within 30 days after the termination date.

Documents to send to your current provider to request the number portability before your contract has actually ended:

See portability request templates for all German providers

Congstar template for an early mobile number portability

 

2. Cancel your contract and request portability after termination

If you just want to transfer your number to a different carrier after your current contract ends, you just need to send them a letter saying that you would like to retain your phone number while using a different service provider.

Documents to send to your current provider:

See portability request templates for all German providers

Congstar template for mobile number portability after a contract has ended

 

3. For PREPAID users: Request portability from your prepaid provider

For prepaid users it is a bit easier, you just need to send a letter of request a few days before you are ordering your new plan. Your new service provider will then request the mobile number portability from your old carrier.

Documents to send to your current prepaid provider:

See portability request templates for all German providers

Congstar template for an prepaid mobile number portability

 

4. Order your new phone plan

Look for your desired phone plan and don’t forget to inform your new carrier that you would like to retain your old number. This needs to be done within the order process. For Congstar this would look like this:

congstar phone number retainment

You need to select “Rufnummer sofort mitnehmen” for an immediate portability and “Rufnummer am Ende der Vertragslaufzeit mitnehmen” for a mobile number portability (MNP) after your contract ended. This should look similar for all German providers.

The cost of keeping your old phone number is usually 25€, but can not be more than 30,72€. You usually get these 25€ refunded by your new phone carrier.

Congstar offers support if you like to keep your old phone number and request MNP (mobile number portability).

 

34 Responses

  1. Usman

    I recently lost my phone. I wish to retrieve my line i.e. get the same phone number. What is the process of doing that?

  2. Mihael

    Hi there . I have to find way to get back my 2 mobile number from o2 . I have my contract ended in January with my old numbers and i get new contract from 02 with 2 new number and i supposed to came back end of January and this guy in MediaMarkt from o2 to transfer my old number to my new sim carts ( new contracts) .Now i can not get my old phone numbers back because in Media Markt is closed during Covid. I try contact o2 but they can not help me to get my numbers back.
    Thank you in advance.

  3. Emilie

    Hi, I am on a monthly prepaid with O2. I would like to keep my number and switch over to Vodafone. Would I have to submit the form to o2 or to vodafone?

    • MyGermanPhone

      Hi Emilie, You would need to submit the form to O2 in this case (your current provider) to let them know that you would like to port that number to Vodafone.

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